Subelliptic Harmonic Maps with Values in Metric Spaces of Nonpositive Curvature. Communications in Mathematical Research, [S. l.], v. 38, n. 4, p. 516–534, 2022. DOI: 10.4208/cmr.2021-0096. Disponível em: https://global-sci.com/index.php/cmr/article/view/9086. Acesso em: 27 feb. 2026.