1. P.H. Dawson, Quadrupole Mass Spectrometry and Its Application, Elsevier, Amsterdam, 1976.
2. The general form of the quadrupole ion trap potential
3. R.E. March, R.J. Hughes, Quadrupole Storage Mass Spectrometry, Wiley/Interscience, New York, 1989.
4. Ion trap mass spectrometry
5. N.W. McLachlan, Ordinary Non-linear Differential Equations in Engineering and Physical Sciences, Oxford University Press, Oxford, 1958.