Kralj, Polona. “Potassium Feldspars in the Smrekovec Volcaniclastic Rocks - a Byproduct of the Reaction from Laumontite to Analcime”. Geologija 44, no. 2 (December 31, 2001): 325–330. Accessed April 19, 2024. https://www.geologija-revija.si/index.php/geologija/article/view/925.