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\bibitem{Kishore_etal2010} {\textquotedblleft}\textit{Electronic structure and optical absorption of GaAs/Al$_{x}$Ga$_{1-x}$As and Al$_{x}$Ga$_{1-x}$As/GaAs core-shell nanowires}{\textquotedblright}. Kishore VVR, Partoens B, Peeters FM, Physical review : B : condensed matter and materials physics \textbf{82}, 235425 (2010).   http://doi.org/10.1103/PhysRevB.82.235425

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