@article{IVM_1963_2_a17,
     author = {B. M. Shain},
     title = {On the theory of the restrictive semigroups},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {152--154},
     publisher = {mathdoc},
     number = {2},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1963_2_a17/}
}