P.A. de Groot, J.H. Baker, and I.S. Oen. 1988. “Evidence for Gravity Subsidence and Granite Diapirism in the 1.8-1.9 Ga Proterozoic Succession of W. Bergslagen, Sweden”. Netherlands Journal of Geosciences, January, 19-29. https://njgjournal.nl/index.php/njg/article/view/12963.