参考文献

Rao, Chebrolu P.; Sreedhara, Alavattam; Rao, P. Venkateswara; Verghese, M. Bindu; Rissanen, Kari; Kolehmainen, Erkki; Lokanath; Sridhar; Prasad, J. Sashidhara Journal of the Chemical Society - Dalton Transactions, 1998 , # 14 p. 2383 - 2393