@article{article94a2d547, title = {Free cyclic actions on surfaces and the Borsuk-Ulam theorem}, author = {Gonçalves, Daciberg Lima and Guaschi, John and Laass, Vinicius Casteluber}, year = {2022}, doi = {10.1007/s10114-022-2202-3}, journal = {Acta Mathematica Sinica, English Series} }