@proceedings{DBLP:conf/ssd/95,
  editor    = {Max J. Egenhofer and
               John R. Herring},
  title     = {Advances in Spatial Databases, 4th International Symposium,
               SSD'95, Portland, Maine, USA, August 6-9, 1995, Proceedings},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {951},
  year      = {1995},
  isbn      = {3-540-60159-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}