@article{bwmeta1.element.bwnjournal-article-fmv58i1p4bwm,
author = {Jane Day},
title = {Monotone relations which preserve arcs and acyclicity},
journal = {Fundamenta Mathematicae},
volume = {58},
year = {1966},
pages = {59-65},
zbl = {0135.40804},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv58i1p4bwm}
}
Day, Jane. Monotone relations which preserve arcs and acyclicity. Fundamenta Mathematicae, Tome 58 (1966) pp. 59-65. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv58i1p4bwm/