1. L.Pauling , The Nature of the Chemical Bond , Cornell University Press , New York , 1948
2. G. A.Jeffery , An Introduction to Hydrogen Bonding , Oxford University Press , New York , 1997
3. Hydrogen Bridges in Crystal Engineering: Interactions without Borders
4. G. C.Pimentel and A. L.McClellan , The Hydrogen Bond , ed. W. H. Freeman , San Francisco , 1960
5. S.Scheiner , Hydrogen Bond: A Theoretical Perspective , Oxford University Press , New York , 1997