@article{JRAM_1980__314_152212,
     author = {Yoshimi Saito},
     title = {On the {S-matrix} for {Schr\"odinger} operators with long-range potentials.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {99--116},
     publisher = {mathdoc},
     volume = {314},
     year = {1980},
     zbl = {0422.35024},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1980__314_152212/}
}