@article{TMF_1983_54_1_a3,
     author = {O. I. Zavialov},
     title = {A~method of approximate calculation of {Feynman} {diagrams.~I}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {38--51},
     publisher = {mathdoc},
     volume = {54},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1983_54_1_a3/}
}