Excitation of Langmuir waves at shocks and solar type II radio bursts G. Mann, C. Vocks, A. Warmuth, J. Magdalenic, M. Bisi, E. Carley, B. Dabrowski, P. Gallagher, A. Krankowski, B. Matyjasiak et al. (2 more) A&A, 660 (2022) A71 Published online: 13 April 2022 DOI: 10.1051/0004-6361/202142201