Satoshi Yamaguchi Kouki Nagamune Keisuke Oe Syoji Kobashi Katsuya Kondo Yutaka Hata Fuzzy Logic Approach to Identification of Cellular Quantity by Ultrasonic System. 636-639 2007 conf/grc/2007 GrC http://doi.ieeecomputersociety.org/10.1109/GRC.2007.67 db/conf/grc/grc2007.html#YamaguchiNOKKH07