BROOKS, C. Discovery of sapphirine in East Greenland. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 146, p. 92–94, 1989. DOI: 10.34194/rapggu.v146.8103. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/8103. Acesso em: 27 nov. 2024.