@article{ZNSL_1986_152_a3,
     author = {E. M. Il'in},
     title = {Wave operators in the three body model of the hard core},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {45--49},
     publisher = {mathdoc},
     volume = {152},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1986_152_a3/}
}