@article{TMF_1983_55_3_a3,
     author = {K. A. Sveshnikov},
     title = {Covariant perturbation theory in the neighborhood of a~classical solution},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {361--384},
     publisher = {mathdoc},
     volume = {55},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1983_55_3_a3/}
}