@article{AL_1973_12_1_a1,
     author = {A. D. Bol'bot},
     title = {Accessible varieties of quasigroups},
     journal = {Algebra i logika},
     pages = {22--30},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1973_12_1_a1/}
}