KLUMP, J.; GURNEY, J.J. A pilot study of the Swartruggens kimberlite dyke swarm. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 7, n. 1, p. 441–442, 1998. DOI: 10.29173/ikc2761. Disponível em: https://ikcabstracts.com/index.php/ikc/article/view/2761. Acesso em: 19 apr. 2024.