Point Integral Method for Elliptic Equations with Variable Coefficients on Point Cloud. Communications in Computational Physics, [S. l.], v. 26, n. 2, p. 506–530, 2019. DOI: 10.4208/cicp.OA-2018-0024. Disponível em: https://gsp.tricubic.dev/cicp/article/view/6725. Acesso em: 14 mar. 2026.