Marek A. Zakrzewski. “Mineral Parageneses of the Sulphide Ore Deposits of Bergslagen Metallogenic Province: I. Ni-Cu Deposits of Southern Sweden”. Netherlands Journal of Geosciences (January 1, 1988): 357-362. Accessed April 5, 2026. https://njgjournal.nl/index.php/njg/article/view/13074.