Páll-Gergely, Barna, János Magyar, Zoltán Csiki-Sava, és Gábor Botfalvai. „Ferussina Petofiana Sp. N. (Gastropoda, Caenogastropoda, Cyclophoridae), the Oldest Representative of Its Subfamily from the Late Cretaceous of Romania”. Acta Zoologica Academiae Scientiarum Hungaricae 69, no. 4 (október 6, 2023): 337–352. Elérés október 29, 2026. https://ojs.mtak.hu/index.php/actazool/article/view/11226.