Y. Yamakoshi

A New Directional Protection for Digital Processor Use

T. Sakaguchi, Katsuhiko Uemura, Y. Yamakoshi, 1980 .

A New Alogorithm of an Accurate Fault Location for EHV/UHV Transmission Lines: Part I - Fourier Transformation Method

K. Uemura, T. Sakaguchi, T. Takagi, 1981, IEEE Transactions on Power Apparatus and Systems.

A New Algorithm of an Accurate Fault Location for EHV/UHV Transmission Lines: Part II - Laplace Transform Method

K. Uemura, T. Sakaguchi, T. Takagi, 1982, IEEE Transactions on Power Apparatus and Systems.