CHEN, B.-Y. A link between harmonicity of 2-distance functions and incompressibility of canonical vector fields. Tamkang Journal of Mathematics, [S. l.], v. 49, n. 4, p. 339–347, 2018. DOI: 10.5556/j.tkjm.49.2018.2804. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/2804. Acesso em: 28 apr. 2024.