@article{TMF_2006_149_2_a1,
     author = {A. V. Tsiganov},
     title = {Bi-Hamiltonian systems of natural form},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {161--182},
     publisher = {mathdoc},
     volume = {149},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2006_149_2_a1/}
}