%0 Journal Article %A M. Palese %T Backlund Loop Algebras for Compact and Noncompact Nonlinear Spin Models in $(2+1)$ Dimensions %J Teoretičeskaâ i matematičeskaâ fizika %D 2005 %P 153-161 %V 144 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2005_144_1_a15/ %G ru %F TMF_2005_144_1_a15