@article{IVM_1986_2_a6,
     author = {B. V. Rozenblat},
     title = {Elementary theories of relatively free semigroups},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {41--43},
     publisher = {mathdoc},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1986_2_a6/}
}