Werner Dilger, Gisela Zifonun. The Predicate Calculus-Language KS as a Query Language. In Logic and Data Bases. pages 377-408, 1977.
@inproceedings{DilgerZ77, title = {The Predicate Calculus-Language KS as a Query Language}, author = {Werner Dilger and Gisela Zifonun}, year = {1977}, tags = {query language}, researchr = {https://researchr.org/publication/DilgerZ77}, cites = {0}, citedby = {0}, pages = {377-408}, booktitle = {Logic and Data Bases}, }