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\bibitem{Kosimov_etal2008} {\textquotedblleft}\textit{Theoretical study of the stable states of small carbon clusters C$_{n}$ (n=210)}{\textquotedblright}. Kosimov DP, Dzhurakhalov AA, Peeters FM, Physical review : B : solid state \textbf{78}, 235433 (2008).   http://doi.org/10.1103/PhysRevB.78.235433

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