@article{TMF_1999_118_2_a2,
     author = {A. V. Tsiganov},
     title = {Outer automorphisms of $sl(2)$, integrable systems, and mappings},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {205--216},
     publisher = {mathdoc},
     volume = {118},
     number = {2},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1999_118_2_a2/}
}