1. Fiche technique de radioprotection du 14C, INRS.SCPRI no. 906.
2. A survey of negative ions from a cesium sputter source
3. Emission of Negative Ions from Metal Surfaces Bombarded by Positive Cesium Ions
4. General Ionex Corporation, Model 834 negative ion sputter source, Instruction manual.
5. G. Doucas, H.R. McHyder and A.B. Knox, Oxford University, Nuclear Physics Laboratory, Memorandum 19/75.