Omar, Ibrahim Che; Nishio, Naomichi; Nagai, Shiro
Agricultural and Biological Chemistry, 1987 , vol. 51, # 8 p. 2153 - 2160

Baldvins, Jon E.; Cui, Changxing; Weiss, Richard G.
Photochemistry and Photobiology, 1996 , vol. 63, # 6 p. 726 - 734