@article{GDZPPN001251066, title = {QUASI-INVERSE SEMIGROUP CONGRUENCES ON AN ORTHODOX SEMIGROUP.}, journal = {Semigroup forum}, volume = {11}, year = {1975}, pages = {363-369}, language = {en}, url = {http://dml.mathdoc.fr/item/GDZPPN001251066} }
Yamada, Miyuki. QUASI-INVERSE SEMIGROUP CONGRUENCES ON AN ORTHODOX SEMIGROUP.. Semigroup forum, Tome 11 (1975) pp. 363-369. http://gdmltest.u-ga.fr/item/GDZPPN001251066/