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\bibitem{Dobrynin_etal2007} {\textquotedblleft}\textit{Observation of Co/CoO nanoparticles below the critical size for exchange bias}{\textquotedblright}. Dobrynin AN, Temst K, Lievens P, Margueritat J, Gonzalo J, Afonso CN, Piscopiello E, Van Tendeloo G, Journal of applied physics \textbf{101}, 113913 (2007).   http://doi.org/10.1063/1.2736303

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