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\bibitem{Carvalho_etal2011} {\textquotedblleft}\textit{Yukawa particles confined in a channel and subject to a periodic potential : ground state and normal modes}{\textquotedblright}. Carvalho JCN, Ferreira WP, Farias GA, Peeters FM, Physical review : B : condensed matter and materials physics \textbf{83}, 094109 (2011).   http://doi.org/10.1103/PhysRevB.83.094109

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