Gonçalves, D. L., J. Guaschi, and V. C. Laass. “The Borsuk-Ulam Property for Homotopy Classes of Maps from the Torus to the Klein Bottle - Part 2”. Topological Methods in Nonlinear Analysis, vol. 60, no. 2, Aug. 2022, pp. 491-16, doi:10.12775/TMNA.2022.005.