DREW, G. J. A geophysical case history of the AK1 lamproite pipe. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 4, n. 1, p. 454–456, 1986. DOI: 10.29173/ikc1200. Disponível em: https://journals.library.ualberta.ca/ikcabstracts.com/index.php/ikc/article/view/1200. Acesso em: 6 apr. 2026.