J. Perez-Invernon, S. Soler, F. J. Gordillo-Vazquez, A. Luque, D. Li, A. Malagon-Romero, T. Neubert, O. Chanrion, K. Dimitriadou, M. Heumesser, V. Reglero, J. Navarro-Gonzalez, N. Østgaard, G. Lu, H. Zhang, A. Huang, Analysis of blue discharges detected by ASIM-MMIA with indication of their source altitudes and electromagnetic signature, AGU Fall Meeting, San Francisco, 9-13 December, 2019