%0 Journal Article %A A. M. Semikhatov %T A differential $\mathscr U$-module algebra for $\mathscr{U}=\overline{\mathscr U}_{\mathfrak{q}}s\ell(2)$ at an~even root of unity %J Teoretičeskaâ i matematičeskaâ fizika %D 2009 %P 5-33 %V 159 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2009_159_1_a0/ %G ru %F TMF_2009_159_1_a0