CARL, D. M. Rings of Holomorphic and Meromorphic Functions on Subsets of Riemann Surfaces. The Journal of the Indian Mathematical Society, [S. l.], v. 40, n. 1-4, p. 75–85, 1976. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/16615. Acesso em: 2 may. 2024.