Using the web to validate document recognition results: experiments with business cards. - Clemens Oertel; Shauna O'Shea; Adam Bodnar; Dorothea Blostein (DRR, 2005)

Extrinsic or Intrinsic Motivation of E-Negotiation Experiments' Participants. - Gregory E. Kersten; Shikui Wu; Clemens Oertel (HICSS, 2011)