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\bibitem{Muia+VanGrieken1990} {\textquotedblleft}\textit{Use of theoretical accurate binary influence coefficients with Tertian{\textquoteright}s equation in X-ray fluorescence analysis of silicate rocks in borax glass beads}{\textquotedblright}. Muia LM, Van Grieken R, X-ray spectrometry \textbf{19}, 141 (1990).   http://doi.org/10.1002/XRS.1300190311

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