1. Person WB, Zerbi G (eds) (1982) Vibrational intensities in infrared and Raman spectroscopy. Elsevier, Amsterdam
2. Jesson JP, Thompson HW (1958) Spectrochim. Acta 13: 217
3. Pimentel GC, McClelland AL (1960) The hydrogen bond. WH Freeman, San Francisco
4. Wilson EB Jr, Decius JC, Cross PC (1955) Molecular vibrations. McGraw Hill, New York
5. Overend J (1963) in: Davies M (ed) Infrared spectroscopy and molecular structure, Elsevier, Amsterdam, p 345