%0 Journal Article %T Vladimir Petrovich Platonov (on his fiftieth birthday) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1990 %P 231-240 %V 45 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1990_45_3_a11/ %G en %F RM_1990_45_3_a11