On existence of the identity element in a semigroup
Matematički vesnik, Tome 17 (1965) no. 2, p. 155
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Classification :
20M99
S. Lajos. On existence of the identity element in a semigroup. Matematički vesnik, Tome 17 (1965) no. 2, p. 155 . http://geodesic.mathdoc.fr/item/MV_1965_17_2_a9/
@article{MV_1965_17_2_a9,
author = {S. Lajos},
title = {On existence of the identity element in a semigroup},
journal = {Matemati\v{c}ki vesnik},
pages = {155 },
year = {1965},
volume = {17},
number = {2},
url = {http://geodesic.mathdoc.fr/item/MV_1965_17_2_a9/}
}