@article{IVM_1976_2_a14,
     author = {A. S. Prosvirov},
     title = {Left idealizers of subsemigroups, and the structure of semigroup},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {105--107},
     year = {1976},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_2_a14/}
}