@article{article81a9ccff,
title   = {The Borsuk–Ulam property for homotopy classes of self-maps of surfaces of Euler characteristic zero},
author = {Gonçalves, Daciberg Lima and Guaschi, John and Laass, Vinicius Casteluber},
year = {2019},
doi = {10.1007/s11784-019-0693-z},
journal   = {Journal of Fixed Point Theory and Applications}
}