YIH-PENG CHIOUChang, H.-C.H.-C.Chang2018-09-102018-09-101997http://www.scopus.com/inward/record.url?eid=2-s2.0-0031185363&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/331985Analysis of optical waveguide discontinuities using the Pad? approximantsjournal article10.1109/68.593367