@article{ZNSL_1977_69_a1,
     author = {A. F. Vakulenko},
     title = {A unitary regularizer for $n$-particle scattering},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {19--33},
     publisher = {mathdoc},
     volume = {69},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_69_a1/}
}