PEDERSEN, Stig Schack. Markasit og pyrit. Varv, [S. l.], v. 1983, n. 4, p. 120–124, 1983. DOI: 10.7146/varv.v1983i4.145413. Disponível em: https://tidsskrift.dk/varv/article/view/145413. Acesso em: 6 dec. 2025.