@article{TMF_1997_112_1_a4,
     author = {L. A. Kalyakin and V. A. Lazarev},
     title = {Perturbation of the two-soliton solution of the {KdV} equation},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {92--102},
     publisher = {mathdoc},
     volume = {112},
     number = {1},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1997_112_1_a4/}
}