@article{IM2_1984_22_1_a2,
     author = {Yu. G. Kleiman},
     title = {Some questions in the theory of varieties of groups},
     journal = {Izvestiya. Mathematics },
     pages = {33--65},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1984_22_1_a2/}
}