Analysis of a long-lived, two-cell lightning storm on Saturn G. Fischer, J. A. Pagaran, P. Zarka, M. Delcroix, U. A. Dyudina, W. S. Kurth and D. A. Gurnett A&A, 621 (2019) A113 Published online: 15 January 2019 DOI: 10.1051/0004-6361/201833014