%0 Journal Article %A V. I. Popov %T L.\,S.~Pontrjagin's maximum principle in the theory of univalent functions %J Doklady Akademii Nauk %D 1969 %P 532-534 %V 188 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_188_3_a9/ %G ru %F DAN_1969_188_3_a9