%0 Journal Article %A G. E. Arutyunov %T Construction of trigonometric Toda $r$-matrices via Hamiltonian reduction of the cotangent bundle over loop groups %J Teoretičeskaâ i matematičeskaâ fizika %D 1997 %P 3-12 %V 113 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_1997_113_1_a0/ %G ru %F TMF_1997_113_1_a0