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\bibitem{Yagmurcukardes_etal2015} {\textquotedblleft}\textit{Pentagonal monolayer crystals of carbon, boron nitride, and silver azide}{\textquotedblright}. Yagmurcukardes M, Sahin H, Kang J, Torun E, Peeters FM, Senger RT, Journal of applied physics \textbf{118}, 104303 (2015).   http://doi.org/10.1063/1.4930086

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