@article{AL_1966_5_5_a3,
     author = {E. G. Koshevoi},
     title = {Multiplicative semigroups of a class of rings without divisors of},
     journal = {Algebra i logika},
     pages = {49--54},
     publisher = {mathdoc},
     volume = {5},
     number = {5},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1966_5_5_a3/}
}