1. G A Jeffery An Introduction to Hydrogen Bonding (New York: Oxford University Press) (1994)
2. M Nishio, M Hirota and Y Umezawa The CH/π Interaction: Evidence, Nature, and Consequences (New York: Wiley-VCH) (1998)
3. P Hobza and K Muller-Dethlefs Non-covalent Interactions: Theory and Experiment (Cambridge: Royal Society of Chemistry) (2010)
4. G R Desiraju and T Steiner The Weak Hydrogen Bond in Structural Chemistry and Biology (New York: Oxford University Press) (1999)
5. W Saenger Principles of Nucleic Acid Structure (New York: Springer) (1984)