1. Saenger, W. Principles of Nucleic Acid Structures; Springer: New York, 1984.
2. For speciel topics, see also: Nucl. Acids Mol. Biol., Eckstein, F.; Lilley, D. M. L. (eds); Springer: Heidelberg, Volumes 1 present.
3. Kang, C.; Zhang, X.; Ratliff, R.; Moyzis, R.; Rich, A. Nature,1992, 356, 126.
4. See, e.g.: Lilley, D. M. J. in ref. 1 b, 1990,Vol. 4, p. 55.
5. Gessner, R. V.; Quigley, G. J.; Wang, A. H.-J.; van der Marel, G. A.; van Boom, J. H.; Rich, A. Biochemistry, 1985, 24, 237.