Evolution of the magnetic field distribution of active regionsS. Dacie, P. Démoulin, L. van Driel-Gesztelyi, D. M. Long, D. Baker, M. Janvier, S. L. Yardley and D. Pérez-SuárezA&A, 596 (2016) A69DOI: https://doi.org/10.1051/0004-6361/201628948
