1. D.W. Turner, A.D. Baker, C. Baker, C.R. Brundle: Molecular Photoelectron Spectroscopy ( Wiley, New York 1970 )
2. K. Kimura, S. Katsumata, Y. Achiba, T. Yamazaki, S. Iwata: Handbook of HeI Photoelectron Spectra of Fundamental Organic Molecules (Jpn. Sci. Soc. Press, Tokyo 1981 )
3. Pt.I Hydrocarbons (C, H), J. Electron Spectrosc. Rel. Phen. 10, 149 (1980)
4. Pt.II Aza-compounds (C,H,N), ibid. 21, 93 (1980)
5. Pt.III Oxo-compounds (C, H, O), ibid. 21, 175 (1980)