TANDON, R. The Hecke Theory of GL(2) and Quadratic Forms. The Journal of the Indian Mathematical Society, [S. l.], v. 40, n. 1-4, p. 87–122, 1976. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/16616. Acesso em: 4 may. 2024.