KWO-RAY CHU2019-12-262019-12-262004https://scholars.lib.ntu.edu.tw/handle/123456789/440849The electron cyclotron maserother10.1103/RevModPhys.76.4892-s2.0-4043104940https://www.scopus.com/inward/record.uri?eid=2-s2.0-4043104940&doi=10.1103%2fRevModPhys.76.489&partnerID=40&md5=4bf3e305d19312254c51a72dc86b52ef