Why an intrinsic magnetic field does not protect a planet against atmospheric escapeHerbert Gunell, Romain Maggiolo, Hans Nilsson, Gabriella Stenberg Wieser, Rikard Slapak, Jesper Lindkvist, Maria Hamrin and Johan De KeyserA&A, 614 (2018) L3DOI: https://doi.org/10.1051/0004-6361/201832934