1. and in Mass Spectrometry in Biomedical Research, ed. by p. 269. J. Wiley & Sons Ltd, Chichester (1986).
2. and in Mass Spectrometry in Biomedical Research, ed. by p. 235. J. Wiley & Sons Ltd Chichester (1986).
3. and 34th Annual Conference on Mass Spectrometry and Allied Topics, ASMS, USA (1986).