@article{GDZPPN001260960,
title = {Congruences on an inverse Bruck-Reilly monoid. Part I: Non-group congruences.},
journal = {Semigroup forum},
volume = {43},
year = {1991},
pages = {279-292},
zbl = {0818.20076},
url = {http://dml.mathdoc.fr/item/GDZPPN001260960}
}
Rankin, S.A. Congruences on an inverse Bruck-Reilly monoid. Part I: Non-group congruences.. Semigroup forum, Tome 43 (1991) pp. 279-292. http://gdmltest.u-ga.fr/item/GDZPPN001260960/