@article{GDZPPN001254316,
title = {Strict radicals of monoids.},
journal = {Semigroup forum},
volume = {20},
year = {1980},
pages = {27-66},
zbl = {0447.20046},
url = {http://dml.mathdoc.fr/item/GDZPPN001254316}
}
Márki, L.; Strecker, R.; Mlitz, R. Strict radicals of monoids.. Semigroup forum, Tome 20 (1980) pp. 27-66. http://gdmltest.u-ga.fr/item/GDZPPN001254316/