Unusually high magnetic fields in the coma of 67P/Churyumov-Gerasimenko during its high-activity phase
C. Goetz, B. T. Tsurutani, P. Henri, M. Volwerk, E. Behar, N. J. T. Edberg, A. Eriksson, R. Goldstein, P. Mokashi, H. Nilsson, I. Richter, A. Wellbrock and K. H. Glassmeier
