CSL: A Language for Defining Conceptual Schemas

@inproceedings{Breutmann1979CSLAL,
  title={CSL: A Language for Defining Conceptual Schemas},
  author={Bernd Breutmann and Eckhard D. Falkenberg and Rosmarie Mauer},
  booktitle={IFIP TC-2 Working Conference on Data Base Architecture},
  year={1979}
}