%0 Journal Article %A A. V. Mikhalev %T Orthogonally complete many-sorted algebraic systems %J Doklady Akademii Nauk %D 1986 %P 1304-1308 %V 289 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_289_6_a4/ %G ru %F DAN_1986_289_6_a4