@article{TMF_1969_1_2_a4,
     author = {V. E. Troitsky and Yu. M. Shirokov},
     title = {Relation between jumps at kinematic and anomalous cuts and the $S$-matrix at a~mass shell},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {213--221},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1969_1_2_a4/}
}