1. Benedik, L., Repinc, U., Inkret, M., 2007. Determination of Activity Concentration of Ra-226 in Drinking Water. Train Mic. Exercise, File name Ex08-2-Y-Ra226-WaterAS2006 Ver 1.
2. Benedik, L., Spasova, Y., Vasile, M., Watjen, U., 2008. Determination of 234U, 238U and 226Ra in bottled drinking water by alpha spectrometry. In: CD Proceedings of the Seventh International Conference on Nuclear and Radiochemistry (NRC-7), Budapest, Hungary.
3. Determination of Radium-228 in natural waters using extraction chromatographic resins;Burnett;Radioact. Radiochem.,1995
4. Comparison of methods for the analysis of 226Ra in water samples;Kohler;Appl. Radiat. Isot,2002
5. Determination of radium isotopes by BaSO4 co-precipitation for the preparation of alpha-spectrometric sources;Lozano;J. Radioanal. Nucl. Chem,1997