3600 20181004111151.0 CTALK-2018-0075 Dammasch, I.E. Multi-instrument observations of an X9.3 flare 2018 2018-09-27 3PRODSIDCEXPLOIT/ 3PRODSIDCEXPLOIT/ 3PRODSIDCEXPLOIT NO Dominique, M. Zhukov, A.N. Heinzel, P. Wauters, L. XVIth Hvar Astrophysical Colloquium, Hvar (Croatia) marie.dominique@observatoire.be Contributed CTALKCONT