%0 Journal Article %A M. Sh. Goldstein %A È. F. Sluzhevskii %T Certain questions in the theory of closed Riemann surfaces %J Doklady Akademii Nauk %D 1975 %P 772-774 %V 220 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_220_4_a3/ %G ru %F DAN_1975_220_4_a3