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\bibitem{Nasirpouri_etal2011} {\textquotedblleft}\textit{Three-dimensional ferromagnetic architectures with multiple metastable states}{\textquotedblright}. Nasirpouri F, Engbarth MA, Bending SJ, Peter LM, Knittel A, Fangohr H, Milo{\v s}evi{\'c} MV, Applied physics letters \textbf{98}, 222506 (2011).   http://doi.org/10.1063/1.3595339

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