JOUBERT, J.S.C.; FREEMAN, L.A.; TERBRUGGE, P.J.; VENTER, J. The Koidu vertical pit – Sierra Leone. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 9, 2008. DOI: 10.29173/ikc3625. Disponível em: https://ikcabstracts.com/index.php/ikc/article/view/3625. Acesso em: 20 apr. 2024.