%0 Journal Article %A A. N. Kolmogorov %A L. A. Lyusternik %A Yu. M. Smirnov %A A. N. Tikhonov %A S. V. Fomin %T Pavel Sergeevich Aleksandrov (on his seventieth birthday and the fiftieth year of his scientific activity) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1966 %P 2-6 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1966_21_4_a0/ %G en %F RM_1966_21_4_a0