@misc{misc, title  = {{Time-dependent properties of sunspot groups -- I. Lifetime and asymmetric evolution}},

 url = {{}},

 year = {{2021}},

 month = {{6}},

 author = {{Forgács-Dajka E and Dobos L and Ballai I}},

 doi = {{10.48550/arxiv.2106.04917}},

 note = {{Accessed on 2025/11/25}}}