@article{GDZPPN001263455,
title = {An example of two von Neumann regular rings with nonisomorphic Monta equivalent multiplicative semigroups.},
journal = {Semigroup forum},
volume = {48},
year = {1994},
pages = {381-384},
zbl = {0803.16009},
url = {http://dml.mathdoc.fr/item/GDZPPN001263455}
}
Mikhalev, A.V.; Knauer, U.; Beidar, K.I. An example of two von Neumann regular rings with nonisomorphic Monta equivalent multiplicative semigroups.. Semigroup forum, Tome 48 (1994) pp. 381-384. http://gdmltest.u-ga.fr/item/GDZPPN001263455/