@article{TMF_1984_59_3_a5,
     author = {M. A. Braun},
     title = {Energy level shifts and transition probabilities in a relativistic atom},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {388--399},
     year = {1984},
     volume = {59},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1984_59_3_a5/}
}