@article{AL_1973_12_3_a1,
     author = {I. V. L'vov},
     title = {Varieties of associative {rings.~II}},
     journal = {Algebra i logika},
     pages = {269--297},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1973_12_3_a1/}
}