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%\cite{blancovinuela:icalepcs2021-frxl04}
\bibitem{blancovinuela:icalepcs2021-frxl04}
E. Blanco Viñuela, B. Fernández Adiego, B. Schofield, and J.O. Vidal,
\textquotedblleft{PLC Based Control Systems Workshop}\textquotedblright,
% --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 ---
presented at ICALEPCS'21, Shanghai, China, Oct. 2021, paper FRXL04, unpublished.