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@article{AL_1996_35_4_a0, author = {N. V. Bayanova}, title = {Coverings in the lattice of quasivarieties of $l$-groups}, journal = {Algebra i logika}, pages = {379--388}, publisher = {mathdoc}, volume = {35}, number = {4}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1996_35_4_a0/} }
N. V. Bayanova. Coverings in the lattice of quasivarieties of $l$-groups. Algebra i logika, Tome 35 (1996) no. 4, pp. 379-388. http://geodesic.mathdoc.fr/item/AL_1996_35_4_a0/