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  1. Reply to the discussion

    Article • The Leading Edge, May 2020, Society of Exploration Geophysicists

    Norbert Van De Coevering

  2. A skeptic's view of VVAz and AVAz

    Article • The Leading Edge, February 2020, Society of Exploration Geophysicists

    Norbert Van De Coevering, Klaas Koster