参考文献

Choudary, Bernadette M.; Geen, Graham R.; Kincey, Peter M.; Parratt, Martin J.; Dales, J. Robert M.; Johnson, Graham P.; O'Donnell, Steven; Tudor, David W.; Woods, Neil Nucleosides and Nucleotides, 1996 , vol. 15, # 5 p. 981 - 994