%0 Journal Article %A E. K. Sklyanin %T Canonicity of Bäcklund Transformation: $r$-Matrix Approach. II %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1999 %P 134-139 %V 226 %U http://geodesic.mathdoc.fr/item/TM_1999_226_a9/ %G ru %F TM_1999_226_a9