1. A. Karmen Packard Tech. Bull. No. 14. Packard Instrum. Co., Inc., Downers Grove, Illinois, 1965.
2. J. W. Rudeman U.S. Patent 2,961,541, November 22, 1960.
3. Determination continue du carbone-14 et du soufre-35 en milieu aqueux par un dispositif a scintillation
4. “The Current Status of Liquid Scintillation Counting’;Shram,1960