HITCHIN, N. Interaction between Mathematics and Physics. Arbor, [S. l.], v. 183, n. 725, p. 427–432, 2007. DOI: 10.3989/arbor.2007.i725.115. Disponível em: https://arbor.revistas.csic.es/index.php/arbor/article/view/115. Acesso em: 17 abr. 2024.