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\bibitem{Okhrimovskyy_etal2004} {\textquotedblleft}\textit{Incorporating the gas flow in a numerical model of rf discharges in methane}{\textquotedblright}. Okhrimovskyy A, Bogaerts A, Gijbels R, Journal of applied physics \textbf{96}, 3070 (2004).   http://doi.org/10.1063/1.1782951

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