A Conceptual and Contextual Object-Oriented Logic Programming: the PROLOG++ Language.

Adil Kabbaj Claude Frasson Marc Kaltenbach Jean-Yves Djamen A Conceptual and Contextual Object-Oriented Logic Programming: the PROLOG++ Language. 251-274 1994 conf/iccs/1994 ICCS db/conf/iccs/iccs94.html#KabbajFKD94 http://dx.doi.org/10.1007/3-540-58328-9_17