HullY91'

@inproceedings{DBLP:conf/pods/HullY91,
  author    = {Richard Hull and
               Masatoshi Yoshikawa},
  title     = {On the Equivalence of Database Restructurings Involving
               Object Identifiers},
  booktitle = {PODS},
  year      = {1991},
  pages     = {328-340},
  ee        = {http://doi.acm.org/10.1145/113413.113443},
  crossref  = {DBLP:conf/pods/91},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/pods/91,
  editor    = {Daniel J. Rosenkrantz},
  title     = {Proceedings of the Tenth ACM SIGACT-SIGMOD-SIGART Symposium
               on Principles of Database Systems, May 29-31, 1991, Denver,
               Colorado, USA},
  publisher = {ACM Press},
  year      = {1991},
  isbn      = {0-89791-430-9},
  ee        = {http://dl.acm.org/citation.cfm?id=113413},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}