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\bibitem{Cheng_etal1993} {\textquotedblleft}\textit{Magnetopolaron effect on shallow donors in GaAs}{\textquotedblright}. Cheng J-P, McCombe BD, Shi JM, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics \textbf{48}, 7910 (1993)

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