All Stories

  1. The National Museum of Natural History at the Bulgarian Academy of Sciences, 2005–2011

    Article • Bulletin of the Natural History Museum – Plovdiv, February 2026, Regional Natural History Museum - Plovdiv

    Professor Pavel E. Stoev

  2. Evaluation of the Bacterial Diversity in the World’s Deepest Cave—Veryovkina, Arabika Massif, Western Caucasus

    Article • Microorganisms, February 2026, MDPI AG

    Professor Pavel E. Stoev

  3. Unpacking the Possibilities of Intellectual Properties for Open Science

    Article • December 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  4. Cave-adapted Plusiocampinae (Diplura, Campodeidae) from the eastern part of the Balkan Peninsula

    Article • Deutsche Entomologische Zeitschrift, November 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  5. Integration of novel technology in pollinator monitoring

    Article • October 2025, Pensoft Publishers

    Toke Høye, Professor Pavel E. Stoev

  6. Cyphocallipus africanus sp. nov.: first native callipodid millipede from continental Africa (Diplopoda, Callipodida)

    Article • ZooKeys, September 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  7. Stakeholders’ perceptions of the synergy between intellectual property and open science: A cross-sectional survey

    Article • Open Research Europe, August 2025, Faculty of 1000, Ltd.

    Professor Pavel E. Stoev

  8. Microbial diversity of the Veryovkina cave after the 2018 flood

    Article • ARPHA Conference Abstracts, February 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  9. Scholarly publication of barcoding data

    Article • ARPHA Conference Abstracts, February 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  10. Soil campodeids (Diplura, Campodeidae) of Eastern Europe, in Romanian and Bulgarian reliefs

    Article • ZooKeys, January 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  11. Integrative data reveal a new millipede species of Sinocallipus Zhang, 1993 (Callipodida, Sinocallipodidae) from Vietnam, with notes on its phylogeny

    Article • Zoosystematics and Evolution, January 2025, Pensoft Publishers

    Professor Pavel E. Stoev

  12. D6.2 Report on engagement with relevant projects and initiatives

    Article • December 2024, Pensoft Publishers

    Professor Pavel E. Stoev

  13. Enlighten the Marvels: a new journal dedicated to natural history museums, collections and their role in interpreting a changing world

    Article • Natural History Collections and Museomics, November 2024, Pensoft Publishers

    Professor Pavel E. Stoev

  14. MAMBO’s contribution to the development of the European Biodiversity Observation Coordination Centre (EBOCC)

    Article • June 2024, Pensoft Publishers

    Professor Pavel E. Stoev

  15. A revision of the millipede family Paracortinidae (Diplopoda, Callipodida)

    Article • ZooKeys, December 2023, Pensoft Publishers

    Professor Pavel E. Stoev

  16. MycoKeys issue 100: progress and innovation to enhance rapid publication in fungal systematics

    Article • MycoKeys, November 2023, Pensoft Publishers

    Professor Pavel E. Stoev

  17. D1.1 BESTMAP website and web-based within-project communication system

    Article • November 2023, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  18. D6.3 Communication Plan and Dissemination Plan

    Article • November 2023, Pensoft Publishers

    Professor Pavel E. Stoev

  19. Deliverable D12.9 Data Management Plan

    Article • February 2023, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  20. Deliverable D3.1 Project logo, marketing pack and website design and development

    Article • February 2023, Pensoft Publishers

    Professor Pavel E. Stoev

  21. A new species of Paracortina from a Vietnamese cave, with remarkable secondary sexual characters in males (Callipodida, Paracortinidae)

    Article • ZooKeys, February 2023, Pensoft Publishers

    Professor Pavel E. Stoev

  22. Biodiversity of Bulgaria: Characteristics, protection and trends

    Article • Biodiversity Information Science and Standards, September 2022, Pensoft Publishers

    Professor Pavel E. Stoev

  23. Identification of fungal taxa with pathogenic potential in soil samples from Perunika Glacier’s newly formed forefields - Livingston Island, Antarctica

    Article • ARPHA Conference Abstracts, June 2022, Pensoft Publishers

    Professor Pavel E. Stoev

  24. A review of the cavernicolous Trichopolydesmidae (Diplopoda, Polydesmida) from the Carpathian-Balkan arch and the Rhodope Mountains, with descriptions of two new genera and three new species

    Article • ZooKeys, April 2022, Pensoft Publishers

    Professor Pavel E. Stoev

  25. Capacity-building as an instrument to foster the implementation of nature-based solutions

    Article • Research Ideas and Outcomes, November 2021, Pensoft Publishers

    Professor Pavel E. Stoev

  26. Five million years in the darkness: A new troglomorphic species of Cryptops Leach, 1814 (Chilopoda, Scolopendromorpha) from Movile Cave, Romania

    Article • ZooKeys, December 2020, Pensoft Publishers

    Professor Pavel E. Stoev

  27. Capacity-building and networking events for nature-based solutions and re-naturing in Malta

    Article • Research Ideas and Outcomes, November 2020, Pensoft Publishers

    Professor Pavel E. Stoev

  28. Building capacity for mainstreaming nature-based solutions into environmental policy and landscape planning

    Article • Research Ideas and Outcomes, September 2020, Pensoft Publishers

    Professor Pavel E. Stoev

  29. Rotatory role-playing and role-models to enhance the research integrity culture

    Article • Research Ideas and Outcomes, May 2020, Pensoft Publishers

    Professor Pavel E. Stoev

  30. Conservation of terrestrial invertebrates: a review of IUCN and regional Red Lists for Myriapoda

    Article • ZooKeys, April 2020, Pensoft Publishers

    Professor Pavel E. Stoev

  31. Отчет о научных исследованиях, поддерживаемых Королевским обществом защиты птиц Великобритании в заповеднике Койтендаг (Восточный Туркменистан)

    Article • September 2019, Pensoft Publishers

    Professor Pavel E. Stoev

  32. Open Science meets Food Modelling: Introducing the Food Modelling Journal (FMJ)

    Article • Food Modelling Journal, September 2019, Pensoft Publishers

    Dr Leonardo Candela, Professor Pavel E. Stoev, Mr Teodor Georgiev

  33. A report of RSPB-supported scientific research at Koytendag State Nature Reserve, East Turkmenistan

    Article • July 2019, Pensoft Publishers

    Professor Pavel E. Stoev

  34. Data Auditing, Cleaning and Quality Assurance Workflows from the Experience of a Scholarly Publisher

    Article • Biodiversity Information Science and Standards, June 2019, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  35. The Pensoft Data Publishing Workflow: The FAIRway from articles to Linked Open Data

    Article • Biodiversity Information Science and Standards, June 2019, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  36. OpenBiodiv: A Knowledge Graph for Literature-Extracted Linked Open Data in Biodiversity Science

    Article • Publications, May 2019, MDPI AG

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  37. Dwarfs under dinosaur legs: a new millipede of the order Callipodida (Diplopoda) from Cretaceous amber of Burma

    Article • ZooKeys, May 2019, Pensoft Publishers

    Professor Pavel E. Stoev

  38. Two new species of the millipede genus Metonomastus Attems, 1937 from the Balkan Peninsula (Diplopoda, Polydesmida, Paradoxosomatidae)

    Article • ZooKeys, September 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  39. Mapping and assessing ecosystem services in the EU - Lessons learned from the ESMERALDA approach of integration

    Article • One Ecosystem, September 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  40. Pensoft’s ARPHA Publishing Platform top innovations in OA publishing as demonstrated by Subterranean Biology

    Article • ARPHA Conference Abstracts, August 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  41. A redescription of the poorly known cave millipede Skleroprotopus membranipedalis Zhang, 1985 (Diplopoda, Julida, Mongoliulidae), with an overview of the genus Skleroprotopus Attems, 1901

    Article • Subterranean Biology, July 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  42. ZooKeys anniversary: 10 years of leadership toward open-access publishing of zoological data and establishment at Pensoft of like-minded sister journals across the biodiversity spectrum

    Article • ZooKeys, July 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  43. PhytoKeys at 100: progress in sustainability, innovation, and speed to enhance publication in plant systematics

    Article • PhytoKeys, June 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  44. The Open Biodiversity Knowledge Management (eco-)System: Tools and Services for Extraction, Mobilization, Handling and Re-use of Data from the Published Literature

    Article • Biodiversity Information Science and Standards, May 2018, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  45. Proceedings of the 17th International Congress of Myriapodology, Krabi, Thailand

    Article • ZooKeys, March 2018, Pensoft Publishers

    Professor Pavel E. Stoev

  46. A striking new genus and species of troglobitic Campodeidae (Diplura) from Central Asia

    Article • Subterranean Biology, September 2017, Pensoft Publishers

    Professor Pavel E. Stoev

  47. OpenBiodiv Poster: an Implementation of a Semantic System Running on top of the Biodiversity Knowledge Graph

    Article • Biodiversity Information Science and Standards, August 2017, Pensoft Publishers

    Professor Pavel E. Stoev

  48. OpenBiodiv: an Implementaion of a Semantic System Running on top of the Biodiversity Knowledge Graph

    Article • Biodiversity Information Science and Standards, August 2017, Pensoft Publishers

    Professor Pavel E. Stoev

  49. A new cave centipede from Croatia, Eupolybothrus liburnicus sp. n., with notes on the subgenus Schizopolybothrus Verhoeff, 1934 (Chilopoda, Lithobiomorpha, Lithobiidae)

    Article • ZooKeys, August 2017, Pensoft Publishers

    Professor Pavel E. Stoev

  50. ARPHA-BioDiv: A toolbox for scholarly publication and dissemination of biodiversity data based on the ARPHA Publishing Platform

    Article • Research Ideas and Outcomes, April 2017, Pensoft Publishers

    Professor Pavel E. Stoev

  51. Strategies and guidelines for scholarly publishing of biodiversity data

    Article • Research Ideas and Outcomes, February 2017, Pensoft Publishers

    Professor Pavel E. Stoev

  52. Species Conservation Profiles compliant with the IUCN Red List of Threatened Species

    Article • Biodiversity Data Journal, September 2016, Pensoft Publishers

    Professor Pavel E. Stoev

  53. Scolopendromorpha of New Guinea and adjacent islands (Myriapoda, Chilopoda)

    Article • Zootaxa, August 2016, Magnolia Press

    Professor Pavel E. Stoev

  54. Data sharing tools adopted by the European Biodiversity Observation Network Project

    Article • Research Ideas and Outcomes, May 2016, Pensoft Publishers

    Professor Pavel E. Stoev

  55. One Ecosystem: Innovation in ecology and sustainability research publishing

    Article • One Ecosystem, May 2016, Pensoft Publishers

    Professor Pavel E. Stoev

  56. Nature Conservation – achievements and challenges within its first four years

    Article • Nature Conservation, April 2016, Pensoft Publishers

    Professor Pavel E. Stoev

  57. A common registration-to-publication automated pipeline for nomenclatural acts for higher plants (International Plant Names Index, IPNI), fungi (Index Fungorum, MycoBank) and animals (ZooBank)

    Article • ZooKeys, January 2016, Pensoft Publishers

    Professor Pavel E. Stoev

  58. A review of the millipede genus Typhloiulus Latzel, 1884 (Diplopoda: Julida: Julidae), with a description of three new species from Bulgaria and Greece

    Article • Zootaxa, August 2015, Magnolia Press

    Professor Pavel E. Stoev

  59. At the end of the rope: Geophilus hadesi sp. n. – the world’s deepest cave-dwelling centipede (Chilopoda, Geophilomorpha, Geophilidae)

    Article • ZooKeys, June 2015, Pensoft Publishers

    Professor Pavel E. Stoev

  60. ZooKeys 500: traditions and innovations hand-in-hand servicing our taxonomic community

    Article • ZooKeys, April 2015, Pensoft Publishers

    Professor Pavel E. Stoev

  61. Corrected data re-harvested: curating literature in the era of networked biodiversity informatics

    Article • Biodiversity Data Journal, January 2015, Pensoft Publishers

    Professor Pavel E. Stoev

  62. Diplopoda — taxonomic overview

    Article • January 2015, Brill

    Professor Pavel E. Stoev

  63. Fauna Europaea – all European animal species on the web

    Article • Biodiversity Data Journal, September 2014, Pensoft Publishers

    Professor Pavel E. Stoev

  64. Millipedes of Cyprus (Myriapoda: Diplopoda)

    Article • Zootaxa, July 2014, Magnolia Press

    Professor Pavel E. Stoev

  65. The need for an integrated biodiversity policy support process – Building the European contribution to a global Biodiversity Observation Network (EU BON)

    Article • Nature Conservation, March 2014, Pensoft Publishers

    Professor Pavel E. Stoev

  66. Eupolybothrus micro-CT

    Article • Biodiversity Data Journal, October 2013, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  67. Biodiversity research in the “big data” era: GigaScience and Pensoft work together to publish the most data-rich species description

    Article • GigaScience, October 2013, Oxford University Press (OUP)

    Professor Pavel E. Stoev

  68. Launch of the Biodiversity Data Journal

    Article • Biodiversity Data Journal, September 2013, Pensoft Publishers

    Mr Edward Baker, Professor Pavel E. Stoev, Mr Teodor Georgiev

  69. The millipede family Paradoxosomatidae in the Philippines, with a description of Eustrongylosoma penevi sp.n., and notes on Anoplodesmus anthracinus Pocock, 1895, recorded in Malaysia and Sri Lanka for the first time (Diplopoda, Polydesmida)

    Article • Biodiversity Data Journal, September 2013, Pensoft Publishers

    Professor Pavel E. Stoev

  70. Revolving images and multi-image keys open new horizons in descriptive taxonomy: ZooKeys working examples

    Article • ZooKeys, September 2013, Pensoft Publishers

    Professor Pavel E. Stoev

  71. Revolving SEM images visualising 3D taxonomic characters: application to six species of the millipede genus Ommatoiulus Latzel, 1884, with description of seven new species and an interactive key to the Tunisian members of the genus (Diplopoda, Julida, ...

    Article • ZooKeys, September 2013, Pensoft Publishers

    Professor Pavel E. Stoev

  72. Review of the millipede family Opisotretidae (Diplopoda, Polydesmida), with descriptions of new species

    Article • ZooKeys, May 2013, Pensoft Publishers

    Professor Pavel E. Stoev

  73. The move to open access and growth: experience from Journal of Hymenoptera Research

    Article • Journal of Hymenoptera Research, January 2013, Pensoft Publishers

    Professor Pavel E. Stoev

  74. Accelerating innovative publishing in taxonomy and systematics: 250 issues of ZooKeys

    Article • ZooKeys, December 2012, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  75. On the front line of modern data-management and Open Access publishing: Two years of PhytoKeys – the fastest growing journal in plant systematics

    Article • PhytoKeys, December 2012, Pensoft Publishers

    Professor Pavel E. Stoev

  76. Publishing online identification keys in the form of scholarly papers

    Article • ZooKeys, July 2012, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  77. Nature Conservation – a new dimension in Open Access publishing bridging science and application

    Article • Nature Conservation, March 2012, Pensoft Publishers

    Professor Pavel E. Stoev, Dr Douglas Evans

  78. Computer-assisted coloring and illuminating based on a region-tree structure

    Article • SpringerPlus, March 2012, Springer Science + Business Media

    Professor Marcin Lukaszewicz, Professor Pavel E. Stoev

  79. From text to structured data: Converting a word-processed floristic checklist into Darwin Core Archive format

    Article • PhytoKeys, January 2012, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  80. A rapid multi-disciplinary biodiversity assessment of the Kamdebooberge (Sneeuberg, Eastern Cape, South Africa): implications for conservation

    Article • SpringerPlus, January 2012, Springer Science + Business Media

    Professor Pavel E. Stoev

  81. ZooKeys 150: Three and a half years of innovative publishing and growth

    Article • ZooKeys, November 2011, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  82. Review of the millipede genus Eustrongylosoma Silvestri, 1896 in the island of New Guinea, with descriptions of nine new species (Diplopoda, Polydesmida, Paradoxosomatidae)

    Article • International Journal of Myriapodology, October 2011, Pensoft Publishers

    Professor Pavel E. Stoev

  83. Two new cavernicolous genera of Julidae (Diplopoda, Julida), with notes on the tribe Brachyiulini and on julid subanal hooks and anchors

    Article • ZooKeys, June 2011, Pensoft Publishers

    Professor Pavel E. Stoev

  84. A review of the millipede genus Sinocallipus Zhang, 1993 (Diplopoda: Callipodida: Sinocallipodidae), with notes on gonopods monotony vs. peripheral diversity in millipedes

    Article • ZooKeys, April 2011, Pensoft Publishers

    Professor Pavel E. Stoev

  85. Interlinking journal and wiki publications through joint citation: Working examples from ZooKeys and Plazi on Species-ID

    Article • ZooKeys, April 2011, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  86. A survey of spiders (Araneae) inhabiting the euedaphic soil stratum and the superficial underground compartment in Bulgaria

    Article • Arachnologische Mitteilungen Arachnology Letters, January 2011, Arachnologische Gesellschaft e.v.

    Professor Pavel E. Stoev

  87. 10.3897/biorisk.v4i0.51

    Article • BIORISK – Biodiversity and Ecosystem Risk Assessment, July 2010, CrossRef Test Account

    Professor Pavel E. Stoev

  88. Myriapods (Myriapoda). Chapter 7.2

    Article • BIORISK – Biodiversity and Ecosystem Risk Assessment, July 2010, Pensoft Publishers

    Professor Pavel E. Stoev

  89. Appendix F. Interactive key for identification of all currently valid species of Eupolybothrus made with Delta software

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  90. Appendix A. Locality dataset for all published and new records of Eupolybothrus nudicornis and Eupolybothrus kahfi in North Africa

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  91. Appendix B. Character dataset for larval and post-larval stadia of Eupolybothrus nudicornis based on published (Meinert 1872, Silvestri 1896, Daas et al. 1996) and new data. Post larval stadia of the new material defined after Daas et al. 1996

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  92. Appendix C. BOLD dataset comprising the COI registration numbers of sequenced Eupolybothrus specimens, COI-5P sequence length and locality data

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  93. Appendix D. MorphBank dataset of all published figures comprising figure number, species name, locality data, body part and additional metadata

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  94. Appendix E. GoogleEarth (http://earth.google.com) interactive map displaying the distribution of Eupolybothrus nudicornis and Eupolybothrus kahfi in North Africa

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  95. The centipede genus Eupolybothrus Verhoeff, 1907 (Chilopoda: Lithobiomorpha: Lithobiidae) in North Africa, a cybertaxonomic revision, with a key to all species in the genus and the first use of DNA barcoding for the group

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  96. Semantic tagging of and semantic enhancements to systematics papers: ZooKeys working examples

    Article • ZooKeys, June 2010, Pensoft Publishers

    Professor Pavel E. Stoev, Mr Teodor Georgiev

  97. Fifty years of devotion to spiders: a concise biography of Christo Deltshev, with a complete list of his publications and described taxa

    Article • ZooKeys, July 2009, Pensoft Publishers

    Professor Pavel E. Stoev

  98. The millipede genus Glomeris Latreille, 1802 (Diplopoda, Glomerida, Glomeridae) in North Africa

    Article • ZooKeys, June 2009, Pensoft Publishers

    Professor Pavel E. Stoev

  99. A new species of Acanthopetalum Verhoeff, 1900 (Diplopoda: Callipodida: Schizopetalidae) from Bulgaria, with a review of the A. richii (Gray, 1832) group

    Article • International Journal of Myriapodology, December 2008, Brill

    Professor Pavel E. Stoev

  100. The scolopendromorph centipedes (Chilopoda, Scolopendromorpha) of Tunisia: taxonomy, distribution and habitats

    Article • ZooKeys, September 2008, Pensoft Publishers

    Professor Pavel E. Stoev

  101. Christo Deltshev & Pavel Stoev (eds) (2006): European Arachnology 2005, Acta zoologica bulgaria, Suppl. No. 1; Proceedings of the 22nd European Colloquium of Arachnology, Blagoevgrad, Bulgaria, 1-6 August 2005

    Article • Arachnologische Mitteilungen Arachnology Letters, December 2006, Arachnologische Gesellschaft e.v.

    Professor Pavel E. Stoev

  102. A new cave‐dwelling millipede of the genusBollmaniaSilvestri, 1896 from Yunnan, China, with remarks on the reduction of the second female leg‐pair (Diplopoda: Callipodida: Caspiopetalidae)

    Article • Journal of Natural History, September 2005, Taylor & Francis

    Professor Pavel E. Stoev

  103. On the identity of some poorly known lithobiid centipedes described by Karl Verhoeff (Chilopoda: Lithobiomorpha)

    Article • Zootaxa, December 2004, Magnolia Press

    Professor Pavel E. Stoev

  104. The first troglomorphic species of the millipede genus Paracortina Wang & Zhang, 1993 from south Yunnan, China (Diplopoda: Callipodida: Paracortinidae)

    Article • Zootaxa, February 2004, Magnolia Press

    Professor Pavel E. Stoev

  105. The first indigenous species of the millipede genus Eurygyrus C.L. Koch, 1847 from the European mainland, with remarks on E. nicarius (Verhoeff, 1901) and E. euboeus (Verhoeff, 1901), and a key to the species of the genus (Diplopoda: Callipodida: Schiz...

    Article • Zootaxa, January 2004, Magnolia Press

    Professor Pavel E. Stoev

  106. Review of the millipede family Paracortinidae Wang & Zhang 1993 (Diplopoda: Callipodida)

    Article • Acta Arachnologica, January 2004, Arachnological Society of Japan

    Professor Pavel E. Stoev

  107. Systematics, phylogeny and biogeography of genus Balkanopetalum Verhoeff, 1926 (Diplopoda: Callipodida: Schizopetalidae)

    Article • Zootaxa, August 2003, Magnolia Press

    Professor Pavel E. Stoev

  108. The millipedes of Albania: recent data, new taxa; systematical, nomenclatoral and faunistical review (Myriapoda, Diplopoda)

    Article • Zoosystema, January 1997, Biodiversity Heritage Library

    Professor Pavel E. Stoev

  109. Fauna and Zoogeography of Myriapoda in Bulgaria

    Article • Springer Science + Business Media

    Professor Pavel E. Stoev