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\bibitem{Martin_etal1995} {\textquotedblleft}\textit{Accurate ab initio quartic force fields for the sulfur compounds H$_{2}$S, CS$_{2}$, OCS and CS}{\textquotedblright}. Martin JML, Fran{\c c}ois JP, Gijbels R, Journal of molecular spectroscopy \textbf{169}, 445 (1995).   http://doi.org/10.1006/jmsp.1995.1037

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