@article{TMF_1990_82_3_a7,
     author = {P. M. Lavrov},
     title = {Effective action for composite fields in~gauge theories},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {402--409},
     year = {1990},
     volume = {82},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_82_3_a7/}
}