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\bibitem{Jalkanen_etal2007} {\textquotedblleft}\textit{Critical temperature modification of low dimensional superconductors by spin doping}{\textquotedblright}. Jalkanen P, Tuboltsev V, Virtanen A, Arutyunov K, R{\"a}is{\"a}nen J, Lebedev O, Van Tendeloo G, Solid state communications \textbf{142}, 407 (2007).   http://doi.org/10.1016/j.ssc.2007.03.011

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