@article{TMF_2000_125_3_a0,
     author = {V. E. Adler and A. B. Shabat and R. I. Yamilov},
     title = {Symmetry approach to the integrability problem},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {355--424},
     publisher = {mathdoc},
     volume = {125},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2000_125_3_a0/}
}