%0 Journal Article %A G. M. Lyan %T On Teichm\"uller space and Poincar\'es $\Theta$-operator %J Doklady Akademii Nauk %D 1980 %P 1053-1056 %V 250 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a6/ %G ru %F DAN_1980_250_5_a6