R.H. Verschure, C. Maijer, P.A.M. Andriessen. Isotopic age determinations in South Norway: I. The Skar volcanic breccia, Greipstad, Vestagder. njg [Internet]. 1989Jan.1 [cited 2026Apr.5];:253-6. Available from: https://njgjournal.nl/index.php/njg/article/view/12901