1. Anantakrishnan, S. V. and Setu Rao, D.Curr. Sci., 1960,29, 51.
2. Bell and Buck ..J.C.S., 1956, 1890.
3. Böttcher, C. J. F. ..Dielectric Polarisation, (Elsevier), 1952.
4. Chen, J. H. and Petrakaus, A. A.J. Chem. Phys., 1959,30, 304.
5. Coulson, C. A. .. InHydrogen Bonding, Ed. by Hadzi, Pergamon, 1959, p. 341.