(1) 高調波対策専門委員会:「電力系統における高調波とその対策」,電気協同研究,Vol. 46, No. 2, pp. 9-19 (1990)
(2) M. Inoue : “Simple Estimation for Finding the Generating Source of a Harmonic Current and its Equivalent Circuit”, T. IEE Japan, Vol. 101-B, No. 8, pp. 451-457 (1981-8) (in Japanese)