Kovács, Zoltán. „Phymatoceratidae (Ammonitina) Fauna from the Lower Jurassic of the Gerecse Mts (Hungary)”. Földtani Közlöny 144, no. 1 (december 5, 2019): 15–36. Elérés november 8, 2026. https://ojs3.mtak.hu/index.php/foldtanikozlony/article/view/2064.