@article{IM2_1985_25_2_a4,
     author = {A. R. Kemer},
     title = {Varieties and $Z_2$-graded algebras},
     journal = {Izvestiya. Mathematics},
     pages = {359--374},
     year = {1985},
     volume = {25},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1985_25_2_a4/}
}