Research in Knowledge Base Management Systems.

http://doi.acm.org/10.1145/984480.984483 Gio Wiederhold S. Jerrold Kaplan Daniel Sagalowicz Research in Knowledge Base Management Systems. 26-54 sigmodR/11-3/P026.pdf 1981 11 SIGMOD Record 3 db/journals/sigmod/sigmod11.html#WiederholdKS81