%0 Journal Article %T The outstanding scientist Sergei Petrovich Novikov celebrated his seventy-fifth birthday on March 20, 2013 %J Funkcionalʹnyj analiz i ego priloženiâ %D 2013 %P 1 %V 47 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2013_47_2_a0/ %G ru %F FAA_2013_47_2_a0