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\bibitem{Cai_etal1996} {\textquotedblleft}\textit{Ab initio study of the X$^{2}$\Sigma$^{+}$ and A $^{2}$\Pi states of the SiN radical}{\textquotedblright}. Cai ZL, Martin JML, Fran{\c c}ois JP, Gijbels R, Chemical physics letters \textbf{252}, 398 (1996).   http://doi.org/10.1016/0009-2614(96)00183-2

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