Clavel, J.J.ClavelWEI-HSIN SUN et al2019-12-272019-12-271991https://scholars.lib.ntu.edu.tw/handle/123456789/442089Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. I. An 8 month campaign of monitoring NGC 5548 with IUEjournal article10.1086/1695402-s2.0-0001952215https://www.scopus.com/inward/record.uri?eid=2-s2.0-0001952215&doi=10.1086%2f169540&partnerID=40&md5=a0cd3aca4885a51bc0322e7335023bcf