@article{105998,
author = {Sin Min Lee},
title = {On a simple one-element extension of left zero semigroups},
journal = {Commentationes Mathematicae Universitatis Carolinae},
volume = {021},
year = {1980},
pages = {313-318},
zbl = {0437.08005},
mrnumber = {580686},
language = {en},
url = {http://dml.mathdoc.fr/item/105998}
}
Lee, Sin Min. On a simple one-element extension of left zero semigroups. Commentationes Mathematicae Universitatis Carolinae, Tome 021 (1980) pp. 313-318. http://gdmltest.u-ga.fr/item/105998/
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