Chang, Che-ChenChe-ChenChangWang, Shi-WeiShi-WeiWang2019-08-012019-08-011996https://www.scopus.com/inward/record.uri?eid=2-s2.0-0029721496&partnerID=40&md5=550b04178e3cd0a48220413293f769cehttps://scholars.lib.ntu.edu.tw/handle/123456789/415980Dependence on collision time of particle ejection of atom-bombarded single-crystal surfacesconference paper2-s2.0-0029721496