MartÃnez-Sykora, Juan; Pontieu, Bart De; Hansteen, Viggo H.; Gudiksen, Boris (2016). TIME DEPENDENT NONEQUILIBRIUM IONIZATION OF TRANSITION REGION LINES OBSERVED WITH IRIS. The Astrophysical Journal, 817(1), 46–.
doi:10.3847/0004-637x/817/1/46
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