%0 Journal Article %A D. I. Panyushev %T The canonical module of a~quasihomogeneous normal affine $SL_2$-variety %J Sbornik. Mathematics %D 1992 %P 569-578 %V 73 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1992_73_2_a16/ %G en %F SM_1992_73_2_a16