@article{TMF_1979_39_3_a1,
     author = {I. V. Volovich},
     title = {Quasiclassical expansion of the {Euclidean} $P(\varphi)_2$ model},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {302--306},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1979_39_3_a1/}
}