%0 Journal Article %A G. N. Ageev %T Zaid Ismailovich Khalilov (on his fiftieth birthday) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1961 %V 16 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1961_16_5_a24/ %G ru %F RM_1961_16_5_a24