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\bibitem{Mandal_etal2007} {\textquotedblleft}\textit{Synthesis, crystal structure, and magnetic properties of Srl.31Co0.63Mn0.3703: a reivative of the incommensurate composite hexagonal perovskite structure}{\textquotedblright}. Mandal TK, Abakumov AM, Hadermann J, Van Tendeloo G, Croft M, Greenblatt M, Chemistry of materials \textbf{19}, 6158 (2007).   http://doi.org/10.1021/cm071840g

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