@article{AL_2001_40_1_a5,
     author = {V. Yu. Popov},
     title = {Equational {Theories} for {Classes} of {Finite} {Semigroups}},
     journal = {Algebra i logika},
     pages = {97--116},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2001_40_1_a5/}
}