HARRIS, J. W.; SPEAR, P. M. Systematic studies of nitrogen in diamonds from known sources. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 4, n. 1, p. 398–400, 1986. DOI: 10.29173/ikc1182. Disponível em: https://ikcabstracts.com/index.php/ikc/article/view/1182. Acesso em: 7 may. 2024.