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\bibitem{Coppola_etal2019} Coppola, M., Gomez Dumm, D., Noguera, S., \& Scoccola, N. N. (2019). Pion-to-vacuum vector and axial vector amplitudes and weak decays of pions in a magnetic field. \textit{Phys. Rev. D}, \textit{99}(5), 054031--18pp.

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