@article{IM_1979__54_142675,
     author = {A.G. Reymann and M. Semenov-Tian-Shansky},
     title = {Reduction of {Hamiltonian} {Systems,} {Affine} {Lie} {Algebras} and {Lax} {Equations.}},
     journal = {Inventiones mathematicae},
     pages = {81--100},
     publisher = {mathdoc},
     volume = {54},
     year = {1979},
     url = {http://geodesic.mathdoc.fr/item/IM_1979__54_142675/}
}