Acoustic oscillations and dynamo action in the G8 sub-giant EK Eridani, A. Bonanno, E. Corsaro, F. Del Sordo, P. L. Pallé, D. Stello and M. Hon A&A, 628 (2019) A106 Published online: 14 August 2019 DOI: 10.1051/0004-6361/201935834