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\bibitem{Balbinot+Fabbri2024} Balbinot, R., \& Fabbri, A. (2024). The Unruh Vacuum and the {\textquotedblleft}In-Vacuum{\textquotedblright} in Reissner-Nordstr{\"o}m Spacetime. \textit{Universe}, \textit{10}(1), 18--14pp.

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