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\bibitem{VanGrieken_etal1973} {\textquotedblleft}\textit{Geometry errors in 14 MeV neutron activation analysis}{\textquotedblright}. Van Grieken R, Speecke A, Hoste J, Journal of radioanalytical chemistry \textbf{13}, 225 (1973).   http://doi.org/10.1007/BF02514126

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