@article{106070,
author = {Jaroslav Je\v zek and Tom\'a\v s Kepka},
title = {Free entropic groupoids},
journal = {Commentationes Mathematicae Universitatis Carolinae},
volume = {022},
year = {1981},
pages = {223-233},
zbl = {0464.08004},
mrnumber = {620359},
language = {en},
url = {http://dml.mathdoc.fr/item/106070}
}
Ježek, Jaroslav; Kepka, Tomáš. Free entropic groupoids. Commentationes Mathematicae Universitatis Carolinae, Tome 022 (1981) pp. 223-233. http://gdmltest.u-ga.fr/item/106070/
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