Raymond F. Boyce, Donald D. Chamberlin, Michael Hammer, W. Frank King III. Specifying Queries as Relational Expressions. In SIGIR. pages 31-47, 1973.
@inproceedings{BoyceCHK73,
title = {Specifying Queries as Relational Expressions},
author = {Raymond F. Boyce and Donald D. Chamberlin and Michael Hammer and W. Frank King III},
year = {1973},
researchr = {https://researchr.org/publication/BoyceCHK73},
cites = {0},
citedby = {0},
pages = {31-47},
booktitle = {SIGIR},
}