@article{MAN_1974__210_162615,
     author = {E.B. Davies},
     title = {Time-dependent {Scattering} {Theory.}},
     journal = {Mathematische Annalen},
     pages = {149--162},
     publisher = {mathdoc},
     volume = {210},
     year = {1974},
     zbl = {0287.47005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1974__210_162615/}
}