参考文献

Callejo, Maria J.; Lafuente, Pilar; Martin-Leon, Nazario; Quinteiro, Margarita; Seoane, Carlos; Soto, Jose L. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 6 p. 1687 - 1690