Harald Trost
In: Applied Artificial Intelligence, Vol. 4, No. 4, Pages 411-457, Taylor & Francis, 1991.
Johannes Stein
DFKI, DFKI Technical Memos (TM), Vol. 91-06, 1991.
Harold Boley (Hrsg.)
Second, Revised Edition, DFKI, DFKI Technical Memos (TM), Vol. 91-04, 1991.
Otto Kühn; Marc Linster; Gabriele Schmidt
DFKI, DFKI Technical Memos (TM), Vol. 91-03, 1991.
Knut Hinkelmann
DFKI, DFKI Technical Memos (TM), Vol. 91-02, 1991.
Jana Koehler
DFKI, DFKI Technical Memos (TM), Vol. 91-01, 1991.
Bernd Bachmann
DFKI, DFKI Documents (D), Vol. 91-12, 1991.
Thilo C. Horstmann
DFKI, DFKI Documents (D), Vol. 91-11, 1991.
Donald R. Steiner; Jürgen Müller (Hrsg.)
DFKI, DFKI Documents (D), Vol. 91-10, 1991.
David Powers; Lary Reeker (Hrsg.)
DFKI, DFKI Documents (D), Vol. 91-09, 1991.