Current developments in knowledge acquisition - EKAW'92: 6th European Knowledge Acquisition Workshop, Heidelberg and Kaiserslautern, Germany, May 18 - 22, 1992; proceedings - Wetter, Thomas; Althoff, Klaus-Dieter; Boose, John; Gaines, Brian R.; Linster, Marc; Schmalhofer, Franz (Lecture notes in computer science, 1992)