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\bibitem{LinsGaldino_etal1987} {\textquotedblleft}\textit{Radio-isotope neutron activation analysis for vanadium, manganese and tungsten in alloy steels}{\textquotedblright}. Lins Galdino SM, Costa Dantas C, Van Grieken R, Analytica chimica acta \textbf{196}, 337 (1987).   http://doi.org/10.1016/S0003-2670(00)83107-4

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