@article{TMF_2003_137_3_a8,
     author = {F. Magri},
     title = {Lenard {Chains} for {Classical} {Integrable} {Systems}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {424--432},
     publisher = {mathdoc},
     volume = {137},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2003_137_3_a8/}
}