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2. Standard Practices for the Measurement of Radioactivity;ASTM,2014
3. Spring 4.0-User Handbook;Delta h,2010
4. MODFLOW-2005, the U.S;Harbaugh,2005
5. Hydrogeological studies for radiological monitoring of shallow groundwater in the EUREX plant of Saluggia (Vercelli, Italy);Iezzi;Radiat. Prot. Dosim.,2009