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\bibitem{vanStraaten_etal1992} {\textquotedblleft}\textit{Influence of axial and radial diffusion processes on the analytical performance of a glow discharge cell}{\textquotedblright}. van Straaten M, Gijbels R, Vertes A, Analytical chemistry \textbf{64}, 1855 (1992).   http://doi.org/10.1021/ac00041a021

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