@article{TMF_2001_129_2_a0,
     author = {V. E. Adler and V. G. Marikhin and A. B. Shabat},
     title = {Lagrangian {Chains} and {Canonical} {B\"acklund} {Transformations}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {163--183},
     publisher = {mathdoc},
     volume = {129},
     number = {2},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2001_129_2_a0/}
}