OMALJEV, V. Distribution of U, Th, and K in siltstone, psammitic and psephitic rocks of Žirovski vrh. Geologija, [S. l.], v. 25, n. 2, p. 289–307, 1982. Disponível em: https://www.geologija-revija.si/index.php/geologija/article/view/518. Acesso em: 7 aug. 2025.