@article{TMF_1971_8_3_a0,
     author = {A. A. Slavnov and L. D. Faddeev},
     title = {Invariant perturbation theory for nonlinear chiral {Lagrangians}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {297--307},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1971_8_3_a0/}
}