@inproceedings{DBLP:conf/adc/Colomb96,
  author    = {Robert M. Colomb},
  title     = {Category-Theoretic Co-Products, Schema Discrepancies and
               Role Abstractions in Information Systems},
  booktitle = {Australasian Database Conference},
  year      = {1996},
  pages     = {0-},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}