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\bibitem{Conti_etal2021} {\textquotedblleft}\textit{Effect of mismatched electron-hole effective masses on superfluidity in double layer solid-state systems}{\textquotedblright}. Conti S, Perali A, Peeters FM, Neilson D, Condensed Matter \textbf{6}, 14 (2021).   http://doi.org/10.3390/CONDMAT6020014

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