ParedaensBGG89'

@book{DBLP:books/sp/ParedaensBGG89,
  author    = {Jan Paredaens and
               Paul De Bra and
               Marc Gyssens and
               Dirk Van Gucht},
  title     = {The Structure of the Relational Database Model},
  publisher = {Springer},
  year      = {1989},
  isbn      = {3-540-13714-9},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}