Ben Shneiderman (Ed.):
Databases: Improving Usability and Responsiveness, Proceedings of the International Conference on Databases:
Improving Usability and Responiveness, August 2-3, 1978, Technion, Haifa, Israel. Academic Press, 1978, ISBN 0-12-642150-1
Query Languages
E. F. Codd: How About Recently? (English Dialog with Relational Data Bases Using Rendevous Version 1).
3-28
Moshé M. Zloof: Design Aspects of the Query-by-Example Data Base Management Language.
29-55