参考文献
Niemeyer, Ulf; Kutscher, Bernhard; Engel, Juergen; Neda, Ion; Fischer, Axel; Schmutzler, Reinhard; Jones, Peter G.; Malet-Martino, Marie-C.; Gilard, Veronique; Martino, Robert
Phosphorus, Sulfur and Silicon and Related Elements, 1996 , vol. 109, # 1-4 p. 473 - 476