(1) For example, K. Tajima, H. Kouno, and K. Nemoto: “Magnetic Noise of Fan Motor”, Hitachi Reviews, Vol. 51, p. 938 (1969-10) (in Japanese)
例えば,田島邦雄·高野久行·根本和夫:「扇風機用モータの磁気音についての検討」, 日立評論, 51, p. 938 (1969-10)
(2) I. Hirotsuka, K. Tsuboi, S. Mori, and K. Kato: “Experimental Study on the Electromagnetic Vibration of a Capacitor Induction Motor”, T. IEE Japan, Vol. 110D, No. 8, p. 908 (1990-8) (in Japanese)
(3) K. Tsuboi, I. Hirotsuka, and F. Ishibashi: “Causes and Characteristics of the Electromagnetic Vibration of A Squirrel Cage Induction Motor under Loaded Condition”, T. IEE Japan, Vol. 117D, No. 1, p. 73 (1997-1) (in Japanese)