T. H. Merrett. Extending the Relational Algebra to Capture Less Meaning. SIGMOD Record, 14(3):55-68, 1984. [doi]
@article{Merrett84a,
title = {Extending the Relational Algebra to Capture Less Meaning},
author = {T. H. Merrett},
year = {1984},
doi = {10.1145/984549.984552},
url = {http://doi.acm.org/10.1145/984549.984552},
tags = {relational algebra, algebra},
researchr = {https://researchr.org/publication/Merrett84a},
cites = {0},
citedby = {0},
journal = {SIGMOD Record},
volume = {14},
number = {3},
pages = {55-68},
}