Hitchcock76'

@inproceedings{DBLP:conf/vldb/Hitchcock76,
  author    = {Peter Hitchcock},
  title     = {User Extensions to the Peterlee Relational Test Vehicle},
  booktitle = {VLDB},
  year      = {1976},
  pages     = {169-180},
  crossref  = {DBLP:conf/vldb/76},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/vldb/76,
  editor    = {Peter C. Lockemann and
               Erich J. Neuhold},
  title     = {Systems for Large Data Bases, September 8-10, 1976, Brussels,
               Belgium},
  publisher = {North Holland {\&} IFIP},
  year      = {1976},
  isbn      = {0-7204-0546-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}