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\bibitem{Luyten_etal1993} {\textquotedblleft}\textit{Electron microscopy and mass-spectrometry study of In$_{0.72}$Ga$_{0.28}$As$_{0.62}$P$_{0.38}$ lasers grown by liquid phase epitaxy}{\textquotedblright}. Luyten W, Volkov VV, van Landuyt J, Amelinckx S, F{\'e}rauge C, Gijbels R, Vasilev MG, Shelyakin AA, Lazarev VB, Physica status solidi: A: applied research \textbf{140}, 453 (1993).   http://doi.org/10.1002/pssa.2211400216

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