@article{TMF_1997_111_1_a3,
     author = {P. M. Lavrov and P. Yu. Moshin},
     title = {Unitarity conditions for physical $S$-matrix within the {BLT} quantization scheme},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {44--62},
     year = {1997},
     volume = {111},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1997_111_1_a3/}
}