1. This monograph is an excellent introduction to the subject;Robertson,1954
2. Electron Impact Phenomena and the Properties of Gaseous Ions.;Field,1957
3. For an account of the quasi-equilibrium theory of mass spectra see Wahrhaftig, A. L. In Advances in Mass Spectrometry, edited by J. D. Waldron, London, Pergamon Press, 1959, p. 274.
4. Mass Spectrometric Analysis. Molecular Rearrangements
5. Advances in Mass Spectrometry;McLafferty,1959