@article{oai:tsukuba.repo.nii.ac.jp:00016039,
 author = {Iwashita, Hirokazu},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {85--111},
 title = {Scattering theory for wave equations with long-range perturbations},
 volume = {9},
 year = {1985}
}