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Yoshihisa Umezawa | Yoshitaka Kenmotsu | I. Terayama | Y. Umezawa | Tomokazu Oosato | Yoshitaka Kenmotsu | Ichirou Terayama | Tomokazu Oosato
[1] Zhaoming Qian,et al. Design of a two-stage low-frequency square-wave electronic ballast for HID lamps , 2003 .