@article{TMF_1979_39_2_a12,
     author = {V. A. Krasnikov},
     title = {Equations of motion in external fields},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {278--283},
     publisher = {mathdoc},
     volume = {39},
     number = {2},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1979_39_2_a12/}
}