Csillag, Gábor, Orsolya Sztanó, Imre Magyar, and Zoltán Hámori. “Stratigraphy of the Kálla Gravel in Tapolca Basin Based on Multi-Electrode Probing and Well Data”. Földtani Közlöny 140, no. 2 (March 26, 2020): 183-196. Accessed December 21, 2025. https://ojs.mtak.hu/index.php/foldtanikozlony/article/view/2665.