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\bibitem{Afanasov_etal2010} Afanasov IM, Shornikova ON, Kirilenko DA, Vlasov II, Zhang L, Verbeeck J, Avdeev VV, Van Tendeloo G (2010) Graphite structural transformations during intercalation by HNO$_{3}$ and exfoliation. Oxford, 1862--1865

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