@article{TMF_1970_5_2_a5,
     author = {V. Z. Baluni and Yu. S. Vernov},
     title = {Sum rules for the ratio of the $\pi^{\pm} p$-scattering amplitudes},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {235--243},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1970_5_2_a5/}
}