@article{TMF_1979_41_1_a5,
     author = {B. L. Voronov and G. Yu. Kryuchkov},
     title = {Renormalization-group analysis of photon processes in an external field},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {40--54},
     year = {1979},
     volume = {41},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1979_41_1_a5/}
}