Hwang, W.S.W.S.HwangWEI-SHIEN HWANG2020-01-172020-01-171997https://scholars.lib.ntu.edu.tw/handle/123456789/451874Hypersingular boundary integral equations for exterior acoustic problemsjournal article10.1121/1.4183492-s2.0-0030957279https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030957279&doi=10.1121%2f1.418349&partnerID=40&md5=3194759d4231c7b0c659d710749f6a3e