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\bibitem{Verbist_etal1998} {\textquotedblleft}\textit{Microstructure of YBa$_{2}$Cu$_{3}$O$_{7-\delta}$ Josephson junctions in relation to their properties}{\textquotedblright}. Verbist K, Lebedev OI, Verhoeven MAJ, Winchern R, Rijnders AJHM, Blank DHA, Tafuri F, Bender H, Van Tendeloo G, Superconductor science and technology \textbf{11}, 13 (1998).   http://doi.org/10.1088/0953-2048/11/1/004

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