@article{TMF_2000_124_3_a5,
     author = {A. V. Tsiganov},
     title = {Degenerate integrable systems on the plane with a cubic integral of motion},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {426--444},
     publisher = {mathdoc},
     volume = {124},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2000_124_3_a5/}
}