TY - JOUR TI - Dmitri\u{\i} Matveevi\v{c} Smirnov. On his fiftieth birthday JO - Algebra i logika PY - 1969 SP - 493 EP - 496 VL - 8 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1969_8_4_a8/ LA - ru ID - AL_1969_8_4_a8 ER -