1. Carrington A, McLachlan AD (1967) Introduction to magnetic resonance with applications to chemistry and chemical physics. Harper & Row, New York
2. Wertz JE, Bolton JR (1972) Electron spin resonance: elementary theory and practical applications. McGraw-Hill Book Company, New York
3. Weil JA, Bolton JR (2007) Electron paramagnetic resonance: elementary theory and practical applications, 2nd edn. Wiley, New York
4. Atherton NM (a) (1973) Electron spin resonance: principles and applications. Ellis Horwood, Chichester
5. (b) (1993) Principles of electron spin resonance. Ellis Horwood, New York