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\bibitem{Kolev_etal2005} {\textquotedblleft}\textit{Influence of electron recapture by the cathode upon the discharge characteristics in dc planar magnetrons}{\textquotedblright}. Kolev I, Bogaerts A, Gijbels R, Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics \textbf{72}, 056402 (2005).   http://doi.org/10.1103/PhysRevE.72.056402

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