Agent-Based Object Recognition. - Oliver Hempel; Ulrich Büker; Georg Hartmann (ICEIS, 2000)

PAWIAN - A Parallel Image Recognition System. - Oliver Hempel; Ulrich Büker; Georg Hartmann (IEA/AIE, 2000)

Parallele wissensbasierte Bilderkennung. - Oliver Hempel (Logos-Verlag, 2002)