@inproceedings{DBLP:conf/sigmod/SuLEAPZ93,
  author    = {Stanley Y. W. Su and
               Herman Lam and
               Srinivasa Eddula and
               Javier Arroyo and
               Neeta Prasad and
               Ronghao Zhuang},
  title     = {OSAM*KBMS: An Object-Oriented Knowledge Base Management
               System for Supporting Advanced Applications},
  booktitle = {SIGMOD Conference},
  year      = {1993},
  pages     = {540-541},
  ee        = {http://doi.acm.org/10.1145/170035.171546},
  crossref  = {DBLP:conf/sigmod/93, DBLP:conf/sigmod/93},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/sigmod/93,
  editor    = {Peter Buneman and
               Sushil Jajodia},
  title     = {Proceedings of the 1993 ACM SIGMOD International Conference
               on Management of Data, Washington, D.C., May 26-28, 1993},
  publisher = {ACM Press},
  year      = {1993},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}