BraviS., CappellettiP., RispoliC., & LorussoM. (2023). Nodules and chert layers in the Ichtyolitic Limestones Formation of Civita of Pietraroja (Southern Apennines, Italy). A genetical model. BORNH Bulletin of Regional Natural History, 3(1), 1-17. https://doi.org/10.6093/2724-4393/9978