%0 Journal Article %A V. G. Mikhal'chuk %T A theorem on the existence of rational functions on Riemann surfaces %J Doklady Akademii Nauk %D 1961 %P 293-296 %V 138 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_138_2_a11/ %G ru %F DAN_1961_138_2_a11