@article{TMF_2003_134_3_a1,
     author = {A. A. Arsen'ev},
     title = {Fermi {Rule} and {Scattering} {Amplitude} {Resonances}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {341--352},
     year = {2003},
     volume = {134},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2003_134_3_a1/}
}