A universal semigroup
Algebra i logika, Tome 9 (1970) no. 6, pp. 731-740
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@article{AL_1970_9_6_a10,
author = {D. J. Collins},
title = {A universal semigroup},
journal = {Algebra i logika},
pages = {731--740},
year = {1970},
volume = {9},
number = {6},
language = {en},
url = {http://geodesic.mathdoc.fr/item/AL_1970_9_6_a10/}
}
D. J. Collins. A universal semigroup. Algebra i logika, Tome 9 (1970) no. 6, pp. 731-740. http://geodesic.mathdoc.fr/item/AL_1970_9_6_a10/