1. Photoelectron spectra of ground state atomic hydrogen, nitrogen and oxygen
2. N. Jonathan, A. Morris, M. Okuda, D.J. Smith, K.J. Ross, Electron Spectroscopy, Asilomar Conference Proceedings, 1971, p. 345.
3. The high resolution photoelectron spectra of transient species: Sulphur monoxide
4. R.S. Berry, in: C. Schlier (Ed.), Molecular Beams and Reactions Kinetics, International School of Physics `Enrico Fermi', Academic Press, New York, 1970.
5. S.B. Nielson, R.S. Berry, in: K. Ogata, T. Hayakawa (Eds.), Recent Developments in Mass Spectrometry, University Press, Baltimore, 1970.