Precambrian organisms and the isotopic composition of organic remains in the Ketilidian of South-West Greenland. Bulletin Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 67, p. 1–41, 1967. DOI: 10.34194/bullggu.v67.6601. Disponível em: https://geusjournals.org/index.php/bullggu/article/view/6601. Acesso em: 10 nov. 2025.