@article{oai:tsukuba.repo.nii.ac.jp:00007452, author = {Kudo, Hiroshi and 工藤, 博 and Shima, Kunihiro and Ishihara, Toyoyuki}, issue = {1}, journal = {Physical review B}, month = {Jan}, pages = {27--34}, title = {Secondary electrons induced by fast ions under channeling conditions. III. Unshadowed electrons in target crystals}, volume = {47}, year = {1993} }