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\bibitem{Lujan_etal2005} {\textquotedblleft}\textit{Barrier permeation effects on the inversion layer subband structure and its applications to the electron mobility}{\textquotedblright}. Lujan GS, Magnus W, Sor{\'e}e B, Ragnarsson LA, Trojman L, Kubicek S, De Gendt S, Heyns A, De Meyer K, Microelectronic engineering \textbf{80}, 82 (2005).   http://doi.org/10.1016/j.mee.2005.04.047

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