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\bibitem{Cagno_etal2020} {\textquotedblleft}\textit{Micro-analytical characterization of thorium-rich aggregates from Norwegian NORM sites (Fen Complex, Telemark)}{\textquotedblright}. Cagno S, Lind OC, Popic JM, Skipperud L, De Nolf W, Nuyts G, Vanmeert F, Jaroszewicz J, Janssens K, Salbu B, Journal Of Environmental Radioactivity \textbf{219}, 106273 (2020).   http://doi.org/10.1016/J.JENVRAD.2020.106273

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