Wolfgang Wahlster; Elisabeth Andre; Winfried Graf; Thomas Rist
DFKI, DFKI Research Reports (RR), Vol. 91-05, 1991.
Bernhard Hollunder; Franz Baader
DFKI, DFKI Research Reports (RR), Vol. 91-03, 1991.
Francesco Donini; Bernhard Hollunder; Maurizio Lenzerini; Alberto Marchetti Spaccamela; Daniele Nardi; Werner Nutt
DFKI, DFKI Research Reports (RR), Vol. 91-02, 1991.
Winfried Graf; Wolfgang Maaß
DFKI, DFKI Research Reports (RR), Vol. 91-35, 1991.
Bernhard Nebel; Christer Bäckström
DFKI, DFKI Research Reports (RR), Vol. 91-34, 1991.