A. Lindanger, M. Marisaldi, D. Sarria, N. Østgaard,, N. Lehtinen, A. Mezentsev, P. Kochkin, C. A. Skeie, K. Ullaland, S. Yang, G. Genov, B. E. Carlson, T. Neubert, V. Reglero, F. Christiansen, C. Kohn, C. Maiorana, I. Bjørge-Engeland, Spectral Analysis of Individual Terrestrial Gamma-ray Flashes Detected by ASIM, EGU General Assembly 2021, Online, April 19-30, 2021.