Hegner83'

@inproceedings{DBLP:conf/pods/Hegner83,
  author    = {Stephen J. Hegner},
  title     = {Algebraic Aspects of Relational Database Decomposition},
  booktitle = {PODS},
  year      = {1983},
  pages     = {400-413},
  ee        = {http://doi.acm.org/10.1145/588058.588106},
  crossref  = {DBLP:conf/pods/83},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/pods/83,
  editor    = {Ronald Fagin and
               Philip A. Bernstein},
  title     = {Proceedings of the Second ACM SIGACT-SIGMOD Symposium on
               Principles of Database Systems, March 21-23, 1983, Colony
               Square Hotel, Atlanta, Georgia, USA},
  publisher = {ACM},
  year      = {1983},
  isbn      = {0-89791-097-4},
  ee        = {http://dl.acm.org/citation.cfm?id=588058},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}