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\bibitem{Hai_etal1998} {\textquotedblleft}\textit{Interface effects on magnetopolarons in GaAs/Al$_{x}$Ga$_{1-x}$As quantum wells at high magnetic fields}{\textquotedblright}. Hai GQ, Peeters FM, Studart N, Wang YJ, McCombe BD, Physical review : B : condensed matter and materials physics \textbf{58}, 7822 (1998).   http://doi.org/10.1103/PhysRevB.58.7822

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