1. G. A. Jeffrey and W.Saenger, Hydrogen Bonding in Biological Structures, Springer, Berlin, 1991.
2. Stretching Frequencies as a Function of Distances in Hydrogen Bonds
3. I. Olovsson and P.-G.Jönsson, in The Hydrogen Bond. Recent Developments in Theory and Experiments, ed. P. Schuster, G. Zundel and C. Sandorfy, North Holland, Amsterdam, 1976, p. 393;
4. T. F. Koetzle and M. S.Lehmann, in The Hydrogen Bond. Recent Developments in Theory and Experiments, ed. P. Schuster, G. Zundel and C. Sandorfy, North Holland, Amsterdam, 1976, p. 457;
5. The water molecule in crystalline hydrates studied by neutron diffraction