1. Observation of the ion trapping phenomenon with bremsstrahlung
2. A. Poncet, Ion trapping and clearing, CERN 95-06, vol. 1, 1995, p.859.
3. A. Hofmann, Tune shifts from self-fields and images, CERN 94-01, vol.1, 1994, p. 329.
4. Y. Baconnier, A. Poncet, P.F. Tavares, Neutralization of accelerator beams by ionisation of the residual gas, CERN 94-01, vol. 1, 1994, p. 525.