@article{TMF_1982_52_2_a0,
     author = {B. V. Medvedev and V. P. Pavlov and M. K. Polivanov and A. D. Sukhanov},
     title = {Analytic properties of many-particle amplitudes},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {163--176},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1982_52_2_a0/}
}