Y Yamauchi, K Nagatoya, A Okuno, N Fujii and T. Inoue
NDT Plus 3 ( 3 ): 279 - 281 , 2010
T Kakita, K Nagatoya, T Mori, M Kobayashi and T. Inoue
NDT Plus 3 ( 5 ): 443 - 446 , 2010