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\bibitem{Scarrozza_etal2012} {\textquotedblleft}\textit{Oxidation of the GaAs(001) surface : insights from first-principles calculations}{\textquotedblright}. Scarrozza M, Pourtois G, Houssa M, Heyns M, Stesmans A, Physical review : B : condensed matter and materials physics \textbf{85}, 195307 (2012).   http://doi.org/10.1103/PhysRevB.85.195307

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