Robertson J.Chen C.W.Warren W.L.CHUN-WEI CHEN2019-11-272019-11-27199602729172https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030384560&partnerID=40&md5=3a57741c78d797943723590020613596https://scholars.lib.ntu.edu.tw/handle/123456789/432895Electronic structure of the layered ferroelectric perovskite SrBi2Ta2O9conference paper2-s2.0-0030384560