@article{TMF_1984_58_2_a6,
     author = {S. L. Shatashvili},
     title = {Two-loop approximation in the background field formalism},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {219--228},
     publisher = {mathdoc},
     volume = {58},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1984_58_2_a6/}
}