%0 Journal Article %A A. I. Mal'tsev %T Strictly related models and recursively perfect algebras %J Doklady Akademii Nauk %D 1962 %P 276-279 %V 145 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_145_2_a12/ %G ru %F DAN_1962_145_2_a12