@article{AL_2011_50_1_a1,
     author = {V. V. Lodeishchikova},
     title = {Levi quasivarieties of exponent~$p^s$},
     journal = {Algebra i logika},
     pages = {26--41},
     publisher = {mathdoc},
     volume = {50},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2011_50_1_a1/}
}