Klaus Dohmen. Improved inclusion-exclusion identities via closure operators. Discrete Mathematics & Theoretical Computer Science, 4(1):61-66, 2000. [doi]
@article{Dohmen00,
title = {Improved inclusion-exclusion identities via closure operators},
author = {Klaus Dohmen},
year = {2000},
url = {http://dmtcs.loria.fr/volumes/abstracts/dm040105.abs.html},
researchr = {https://researchr.org/publication/Dohmen00},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics & Theoretical Computer Science},
volume = {4},
number = {1},
pages = {61-66},
}