Serge Abiteboul, Stéphane Grumbach. A Rule-Based Language with Functions and Sets. ACM Trans. Database Syst., 16(1):1-30, 1991. [doi]
@article{AbiteboulG91,
title = {A Rule-Based Language with Functions and Sets},
author = {Serge Abiteboul and Stéphane Grumbach},
year = {1991},
doi = {10.1145/103140.103141},
url = {http://doi.acm.org/10.1145/103140.103141},
tags = {rule-based, rules},
researchr = {https://researchr.org/publication/AbiteboulG91},
cites = {0},
citedby = {0},
journal = {ACM Trans. Database Syst.},
volume = {16},
number = {1},
pages = {1-30},
}