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\bibitem{Verreck_etal2014} {\textquotedblleft}\textit{Improved source design for p-type tunnel field-effect transistors : towards truly complementary logic}{\textquotedblright}. Verreck D, Verhulst AS, Sor{\'e}e B, Collaert N, Mocuta A, Thean A, Groeseneken G, Applied physics letters \textbf{105}, 243506 (2014).   http://doi.org/10.1063/1.4904712

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