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\bibitem{Bafekry_etal2021} {\textquotedblleft}\textit{Semiconducting chalcogenide alloys based on the (Ge, Sn, Pb) (S, Se, Te) formula with outstanding properties : a first-principles calculation study}{\textquotedblright}. Bafekry A, Shahrokhi M, Shafique A, Jappor HR, Fadlallah MM, Stampfl C, Ghergherehchi M, Mushtaq M, Feghhi SAH, Gogova D, ACS Omega \textbf{6}, 9433 (2021).   http://doi.org/10.1021/ACSOMEGA.0C06024

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