1. J. N. Israelachvili , Intermolecular Forces and Surface Forces , Academic Press Ltd. , London , 2nd edn, 1992 , Table 6.3
2. L. Pauling , The Nature of the Chemical Bond , Cornell Univ. Press , Ithaca, New York , 3rd edn, 1960 , ch. 12
3. G. A. Jeffrey , An Introduction to Hydrogen Bonding , Oxford Univ. Press , Oxford , 1997
4. S. Scheiner , Hydrogen Bonding – A Theoretical Perspective , Oxford Univ. Press , Oxford , 1997
5. G. C. Pimentel and A. L.McClellan , The Hydrogen Bond , W. H. Freeman , San Francisco , 1960