@inproceedings{DBLP:conf/sigmod/FernandezSC75,
  author    = {Eduardo B. Fern{\'a}ndez and
               Rita C. Summers and
               Charles D. Coleman},
  title     = {An Authorization Model for a Shared Data Base},
  booktitle = {SIGMOD Conference},
  year      = {1975},
  pages     = {23-31},
  ee        = {http://doi.acm.org/10.1145/500080.500084},
  crossref  = {DBLP:conf/sigmod/75},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/sigmod/75,
  editor    = {W. Frank King},
  title     = {Proceedings of the 1975 ACM SIGMOD International Conference
               on Management of Data, San Jose, California, May 14-16,
               1975},
  publisher = {ACM},
  year      = {1975},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}