@article{AA_1990_2_2_a6,
     author = {Yu. B. Suris},
     title = {Generalized {Toda} chains in discrete time},
     journal = {Algebra i analiz},
     pages = {141--157},
     year = {1990},
     volume = {2},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1990_2_2_a6/}
}