1. (1) Technical Report of IEE Japan (II), No. 182 (1984) (in Japanese)
2. ???????????-????3.3kV???6.6kV??????????????????, ????????(II?), No. 182 (1984)
3. (2) Technical Report of IEE Japan (II), No. 267 (1988) (in Japanese)
4. ????????·??????????????, ????????(II?), No. 267 (1988)
5. (3) Technical Report of IEE Japan (II), No. 402 (1992) (in Japanese)