@article{TMF_1975_22_2_a6,
     author = {V. A. Andreev},
     title = {Breaking of dynamical symmetries and phase shift},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {223--230},
     year = {1975},
     volume = {22},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_22_2_a6/}
}