@article{AL_1981_20_4_a2,
     author = {A. R. Kemer},
     title = {Decomposition of varieties},
     journal = {Algebra i logika},
     pages = {395--418},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1981_20_4_a2/}
}