Undersampling effects on observed periods of coronal oscillations Daye Lim, Tom Van Doorsselaere, Valery M. Nakariakov, Dmitrii Y. Kolotkov, Yuhang Gao and David Berghmans A&A, 690 (2024) L8 Published online: 09 October 2024 DOI: 10.1051/0004-6361/202451684