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\bibitem{Guendelman_etal2013} Guendelman, E. I., Olmo, G. J., Rubiera-Garcia, D., \& Vasihoun, M. (2013). Nonsingular electrovacuum solutions with dynamically generated cosmological constant. \textit{Phys. Lett. B}, \textit{726}(4-5), 870--875.

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