@article{TMF_2001_127_3_a6,
     author = {L. A. Kalyakin},
     title = {Perturbation of {Solutions} with {Moving} {Singularities}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {401--410},
     publisher = {mathdoc},
     volume = {127},
     number = {3},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2001_127_3_a6/}
}