1. Araki, Y. (Japan. Kokai Tokkyo Koho 61–220456 [1986] from C.A. 106 [1987] No. 77146).
2. Hayashi, H.; Yamoto, H. (Japan. Kokai Tokkyo Koho 60–215765 [1985] from C.A. 104 [1986] No. 197689).
3. Hitachi Hokkai Semiconductor K. K.; Hitachi Ltd. (Japan. Kokai Tokkyo Koho 60–21525 [1985] from C.A. 103 [1985] No. 31231).
4. Amano, N.; Ito, Y.; Kuroishi, A. (Japan. Kokai Tokkyo Koho 62–232943 [1987] from C.A. 108 [1988] No. 86353).
5. Murakami, T.; Fujimoto, H.; Wada, Y. (Japan. Kokai Tokkyo Koho 62–286247 [1987] from C.A. 109 [1988] No. 84676).