References
- Eschenmoser , A. and Dobler , M. 1992 . Helv. Chim. Acta , 75 : 218
- Seela , F. , Wörner , K. and Rosemeyer , H. 1994 . Helv. Chim. Acta , 77 : 883 and lit. cited therein.
- Saenger , W. 1984 . Principles of Nucleic Acid Structure , pp. 253 New York : Springer Verlag . ff.