Tseng, C.-C.C.-C.TsengSOO-CHANG PEI2020-06-112020-06-111998https://scholars.lib.ntu.edu.tw/handle/123456789/498897Complex notch filter design using allpass filterjournal article10.1049/el:199806542-s2.0-0032072880https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032072880&doi=10.1049%2fel%3a19980654&partnerID=40&md5=ec11b7b5d0b6fcbe5d6bb0bfbf8e0103