A System for Computing Constrained Default Logic Extensions. - Grigoris Antoniou; Allen P. Courtney; Jörg Ernst; Mary-Anne Williams (JELIA, 1996)

Active intrinsic calibration using vanishing points. - Konstantinos Daniilidis; Jörg Ernst (Pattern Recognit. Lett., 1996)

Stratification for Variants of Default Logic. - Jörg Ernst; Grigoris Antoniou (AAAI/IAAI, 1997)