%0 Journal Article %A M. V. Sapir %T A minimal variety of associative algebras with unsolvable word problem %J Sbornik. Mathematics %D 1991 %P 567-584 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1991_68_2_a11/ %G en %F SM_1991_68_2_a11