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\bibitem{Robben_etal2001} {\textquotedblleft}\textit{Design and development of a new program for data processing of mass spectra acquired by means of a high-resolution double-focusing glow-discharge mass spectrometer}{\textquotedblright}. Robben J, Dufour D, Gijbels R, Fresenius{\textquoteright} journal of analytical chemistry \textbf{370}, 663 (2001).   http://doi.org/10.1007/s002160100881

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