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\bibitem{Cenian_etal2002} {\textquotedblleft}\textit{Comment on {\textquoteright}Integral cross sections for electron impact excitation of electronic states of N$_{2}${\textquoteright}}{\textquotedblright}. Cenian A, Chernukho A, Bogaerts A, Gijbels R, Journal of physics: B : atomic and molecular physics \textbf{35}, 5163 (2002).   http://doi.org/10.1088/0953-4075/35/24/401

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