@article{IVM_1985_11_a0,
     author = {L. N. Shevrin and M. V. Volkov},
     title = {Identities of semigroups},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--47},
     year = {1985},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1985_11_a0/}
}