@article{1138843766,
author = {Yamada, Miyuki},
title = {Compositions of semigroups},
journal = {Kodai Math. Sem. Rep.},
volume = {8},
number = {1},
year = {1956},
pages = { 107-111},
language = {en},
url = {http://dml.mathdoc.fr/item/1138843766}
}
Yamada, Miyuki. Compositions of semigroups. Kodai Math. Sem. Rep., Tome 8 (1956) no. 1, pp. 107-111. http://gdmltest.u-ga.fr/item/1138843766/