%0 Journal Article %A Yu. V. Linnik %A S. M. Lozinskii %A G. I. Natanson %A V. V. Petrov %T Nikolai Aleksandrovich Sapogov (on his fiftieth birthday) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1966 %P 169-170 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1966_21_2_a4/ %G en %F RM_1966_21_2_a4