@article{INTF_1987_16_a1,
     author = {M. A. Olshanetsky and A. M. Perelomov and A. G. Reiman and M. A. Semenov-Tian-Shansky},
     title = {Integrable {systems.~II}},
     journal = {Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Fundamental'nye Napravleniya},
     pages = {86--226},
     year = {1987},
     volume = {16},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTF_1987_16_a1/}
}