%0 Journal Article %T Dmitri\u{\i} Matveevi\v{c} Smirnov. On his fiftieth birthday %J Algebra i logika %D 1969 %P 493-496 %V 8 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1969_8_4_a8/ %G ru %F AL_1969_8_4_a8