CJCU
Studies on the Coloring Reaction of α,β,γ,δ-Tetraphenylporphine with Cobalt
Wu Qizuang, Wang Dongjin, Su Demi, Zeng Guangquan, Huang Zhexing, He Suqiong
Chem. J. Chinese Universities . 1989, (3): 299 -301 .