Kouki Nagamune Yutaka Hata Kazuhiko Taniguchi Inherent Wave Estimation on Ultrasonic Non-destructive Testing Using Fuzzy Inference. 369-379 2001 conf/fuzzy/2001 Fuzzy Days http://link.springer.de/link/service/series/0558/bibs/2206/22060369.htm db/conf/fuzzy/fuzzy2001.html#NagamuneHT01