Knowledge Querying in the Conceptual Graph Model: The RAP Modula (Research Note).

Olivier Guinaldo Ollivier Haemmerlé Knowledge Querying in the Conceptual Graph Model: The RAP Modula (Research Note). 287-294 http://link.springer.de/link/service/series/0558/bibs/1453/14530287.htm 1998 conf/iccs/1998 ICCS db/conf/iccs/iccs98.html#GuinaldoH98