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Pure Appl. Chem., 1993, Vol. 65, No. 9, pp. 1973-1977
doi:10.1351/pac199365091973
M. Yamamura, N. El Borai, T. Ohkubo, Y. Ishihara, J. Takano, N. Matsunami, K. Kinoshita, T. Miyake, I. Ohtani, Y. Yamazaki and M. Yamamoto