CHRISTIANSEN, F. Chapter 9: Quantitative aspects and economic implications. Bulletin Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 158, p. 78–84, 1989. DOI: 10.34194/bullggu.v158.6708. Disponível em: https://geusjournals.org/index.php/bullggu/article/view/6708. Acesso em: 3 jul. 2024.