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\bibitem{Wahl_etal1995} {\textquotedblleft}\textit{Columnar defects and irreversibility lines in Ti-based superconductors}{\textquotedblright}. Wahl A, Hervieu M, Van Tendeloo G, Hardy V, Provost J, Groult D, Simon C, Raveau B, Radiation effects and defects in solids \textbf{133}, 293 (1995)

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