- Fischer, Tobias., Schöllmann, Lothar., Haunert, Johannes. (2024). The Late Permian Kupferschiefer Fossils and the Geological Educational Trail in the UNESCO Global Geopark TERRA.vita (NW Germany). Geoconservation Research (Geoconserv. Res.), 4(1), 278-289, https://doi.org/10.30486/gcr.2021.1927911.1091