GRIFFIN, W.L.; TAYLOR, P.N. The Fen Damkjernite: petrology of a "central-complex kimberlite". International Kimberlite Conference: Extended Abstracts, [S. l.], v. 1, p. 135–137, 1973. DOI: 10.29173/ikc867. Disponível em: https://ikcabstracts.com/index.php/ikc/article/view/867. Acesso em: 15 apr. 2024.