DUEHOLM, K. New instruments for geological photo-interpretation and mapping. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 80, p. 144–148, 1976. DOI: 10.34194/rapggu.v80.7508. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/7508. Acesso em: 3 jul. 2024.