%0 Journal Article %A F. G. Avkhadiev %A S. R. Nasyrov %T Necessary conditions for the existence of a Riemann surface with a given boundary %J Trudy seminara po kraevym zadačam %D 1985 %P 6-15 %V 22 %N 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1985_22_22_a1/ %G ru %F KUKZ_1985_22_22_a1