%0 Journal Article %A A. M. Semikhatov %T Representations of infinite-dimensional algebras and conformal field theory: from $N=2$ to $\widehat{sl}(2\vert1)$ %J Teoretičeskaâ i matematičeskaâ fizika %D 1997 %P 195-240 %V 112 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1997_112_2_a1/ %G ru %F TMF_1997_112_2_a1