PizanoKC89'

@article{DBLP:journals/computer/PizanoKC89,
  author    = {Arturo Pizano and
               Allen Klinger and
               Alfonso F. Cardenas},
  title     = {Specification of Spatial Integrity Constraints in Pictorial
               Databases},
  journal   = {IEEE Computer},
  volume    = {22},
  number    = {12},
  year      = {1989},
  pages     = {59-71},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/2.42032},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}