1. Cuarto Plan General de Residuos Radiactivos. Ministerio de Industria y Energı́a, 1994.
2. J.P. Ghysels, Proc. 5th Radioactive Waste Management and Environmental Remediation, vol. 2, ASME, New York, 1995, p. 889.
3. M.T. Ortı́z, in: Senda (Ed.), Generación y gestion de residuos de baja actividad, Ch. 1, SNE, 1994, p. 66.
4. Determination of Physical Homogeneity by Gamma-Ray Imaging
5. Nondestructive Determination of Activity