@article{GDZPPN001249002,
title = {Endomorphism monoids of acts over monoids.},
journal = {Semigroup forum},
volume = {7},
year = {1974},
pages = {50-58},
zbl = {0258.20059},
url = {http://dml.mathdoc.fr/item/GDZPPN001249002}
}
Mikhalev, A.V.; Knauer, U. Endomorphism monoids of acts over monoids.. Semigroup forum, Tome 7 (1974) pp. 50-58. http://gdmltest.u-ga.fr/item/GDZPPN001249002/