Size of a plasma cloud matters - The polarisation electric field of a small-scale comet ionosphereH. Nilsson, H. Gunell, T. Karlsson, N. Brenning, P. Henri, C. Goetz, A. I. Eriksson, E. Behar, G. Stenberg Wieser and X. VallièresA&A, 616 (2018) A50DOI: https://doi.org/10.1051/0004-6361/201833199