%0 Journal Article %A I. M. Mel'nik %T Branch point indices of a multiple-valued function %J Doklady Akademii Nauk %D 1960 %P 521-524 %V 134 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_134_3_a5/ %G ru %F DAN_1960_134_3_a5