@article{TMF_1975_24_1_a8,
     author = {N. K. Dushutin and V. M. Mal'tsev and S. I. Sinegovskii},
     title = {Particle production in the extended $S$-matrix method},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {71--77},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_24_1_a8/}
}