1. Adamovič J, Mikuláš R, Cílek V (2006) Sandstone districts of the Bohemian Paradise: emergence of a romantic landscape. Geolines 21:1–100
2. Aquino RS, Schänzel HA, Hyde KF (2017) Analysing push and pull motives for volcano tourism at Mount Pinatubo, Philippines. Geoheritage 9:1–15
3. Auf den Spuren des Rochlitzer Porphyrs (2008). Große Kreisstadt Rochlitz, Rochlitz
4. Awdankiewicz M (1999a) Volcanism in a late Variscan intramontane trough: Carboniferous and Permian volcanic centres of the Intra-Sudetic Basin, SW Poland. Geol Sudetica 32:13–47
5. Awdankiewicz M (1999b) Volcanism in a late Variscan intramontane trough: the petrology and geochemistry of the Carboniferous and Permian volcanic rocks of the Intra-Sudetic Basin, SW Poland. Geol Sudet 32:83–111