@inproceedings{DBLP:conf/pods/AgrawalA90,
  author    = {Divyakant Agrawal and
               Amr {El Abbadi}},
  title     = {Locks with Constrained Sharing},
  booktitle = {PODS},
  year      = {1990},
  pages     = {85-93},
  ee        = {http://doi.acm.org/10.1145/298514.298545},
  crossref  = {DBLP:conf/pods/90},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/pods/90,
  editor    = {Daniel J. Rosenkrantz and
               Yehoshua Sagiv},
  title     = {Proceedings of the Ninth ACM SIGACT-SIGMOD-SIGART Symposium
               on Principles of Database Systems, April 2-4, 1990, Nashville,
               Tennessee, USA},
  publisher = {ACM Press},
  year      = {1990},
  isbn      = {0-89791-352-3},
  ee        = {http://dl.acm.org/citation.cfm?id=298514},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}