Variable magnetic field geometry of the young sun HN Pegasi (HD 206860)S. Boro Saikia, S. V. Jeffers, P. Petit, S. Marsden, J. Morin and C. P. FolsomA&A, 573 (2015) A17DOI: https://doi.org/10.1051/0004-6361/201424096
