%0 Journal Article %A L. A. Aksent'ev %T Indices of functions on Riemann surfaces %J Doklady Akademii Nauk %D 1963 %P 9-12 %V 152 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_152_1_a0/ %G ru %F DAN_1963_152_1_a0