@article{TMF_1973_15_2_a6,
     author = {M. V. Ioffe and Yu. V. Novozhilov and E. V. Prokhvatilov},
     title = {Investigation of the spin states norm in dual models},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {237--244},
     year = {1973},
     volume = {15},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1973_15_2_a6/}
}