1. Code of Federal Regulations, 10 CFR 61, Licensing Requirements for Land Disposal of Radioactive Waste, Office of the Federal Register, January 2000.
2. DOE, Radioactive Waste Management, Order 435.1, U.S. Department of Energy, Washington, DC, 9 August 1999.
3. J.R. Parrington, H.D. Knox, S.L. Breneman, E.M. Baum, F. Feiner (Eds.), Nuclides and Isotopes, General Electric Co., USA, 1996.
4. Packard Instrument Company, in: M. Kessler (Ed.), Liquid Scintillation Analysis, Science and Technology, Packard Instrument Co. Inc., 1989.
5. C.F. Poole, S.K. Poole, Chromatography Today, Elsevier, Amsterdam, 1991, pp. 200–205.