@article{bwmeta1.element.desklight-44c7a9dc-6bce-401a-b47d-4bfaebe0472c,
author = {W\l odzimierz Waliszewski},
title = {On a generalization of the notion of a semi-group},
journal = {Colloquium Mathematicae},
volume = {14},
year = {1966},
pages = {191-194},
zbl = {0146.02102},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-44c7a9dc-6bce-401a-b47d-4bfaebe0472c}
}
Włodzimierz Waliszewski. On a generalization of the notion of a semi-group. Colloquium Mathematicae, Tome 14 (1966) pp. 191-194. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-44c7a9dc-6bce-401a-b47d-4bfaebe0472c/