@misc{misc, title  = {{Proper Orthogonal and Dynamic Mode Decomposition of Sunspot Data}},

 url = {{}},

 year = {{2020}},

 month = {{10}},

 author = {{Albidah AB and Brevis W and Fedun V and Ballai I and Jess DB and Stangalini M and Higham J and Verth G}},

 note = {{Accessed on 2024/09/20}}}