1. Expected EAGLE event rate towards the Magellanic Clouds, Takashi Nakamura and Ryoichi Nishi, Progress of Theoretical Physics, (1998) Vol. 99, 963 -- 970. 2. Keplar Rotation Effects on Binary Microlensing Events, Kunihito Ioka, Ryoichi Nishi and Yukitoshi Kan-ya, Progress of Theoretical Physics, (1999) Vol. 102, 983 -- 1000.