APPEL, P. Tourmaline in Precambrian supracrustal rocks from Aasiaat, central West Greenland. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 140, p. 44–46, 1988. DOI: 10.34194/rapggu.v140.8031. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/8031. Acesso em: 27 nov. 2024.