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\bibitem{Xu_etal1991} {\textquotedblleft}\textit{Diffusion-to-streaming transition in a two-dimensional electron system in a polar semiconductor}{\textquotedblright}. Xu W, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics \textbf{43}, 14134 (1991)

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