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\bibitem{Nakhaee_etal2019} {\textquotedblleft}\textit{Single-layer structures of a$_{100}$- and b$_{010}$-Gallenene : a tight-binding approach}{\textquotedblright}. Nakhaee M, Yagmurcukardes M, Ketabi SA, Peeters FM, Physical chemistry, chemical physics \textbf{21}, 15798 (2019).   http://doi.org/10.1039/C9CP02515D

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