R.T.M. Dobbe, LS. Oen, & E.A.T. Verdurmen. (1995). U-Pb zircon ages of metatuffites and Older Granite from the Tunaberg area, SE Bergslagen, Sweden. Netherlands Journal of Geosciences, 74, 129-136. Retrieved from https://njgjournal.nl/index.php/njg/article/view/12411