%0 Journal Article %A M. V. Zaicev %T On decomposability of commutators of varieties of Lie algebras and groups into products %J Sbornik. Mathematics %D 1983 %P 283-297 %V 44 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1983_44_3_a3/ %G en %F SM_1983_44_3_a3