Yamago Shigeru, Yamada Takeshi, Maruyama Tomokazu, Yoshida Jun-ichi
Division of Molecular Material Science, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan.
Angew Chem Int Ed Engl. 2004 Apr 13;43(16):2145-8. doi: 10.1002/anie.200353552.