The comparative effectiveness of sponsored and nonsponsored links for Web e-commerce queries

Bernard J. Jansen
  • ACM Transactions on the Web, May 2007, ACM (Association for Computing Machinery)
  • DOI: 10.1145/1232722.1232725

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http://dx.doi.org/10.1145/1232722.1232725

The following have contributed to this page: Dr Bernard (Jim) J. Jansen