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1) T. Michinobu, M. Bito, Y. Yamada, Y. Katayama, K.

Noguchi, E. Masai, M. Nakamura, S. Ohara, K. Shige- hara,Bull. Chem. Soc. Jpn.,80, 2436῎2442 (2007).

2) IJ‚ƒK„…L=†‡ˆMN45, 239῎246 (2007).

3) T. Michinobu, M. Hishida, M. Sato, Y. Katayama, E.

Masai, M. Nakamura, Y. Otsuka, S. Ohara, K. Shigehara, Polym. J.,40, 68῎75 (2008).

4) T. Michinobu, Y. Inazawa, K. Hiraki, Y. Katayama, E.

Masai, M. Nakamura, S. Ohara, K. Shigehara, Chem.

Lett.,37, 154῎155 (2008).

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