1. Alexandrowicz SW (1995) Ruins of Carpathian castles as refuges of land snails. Ochr Przyr 52:3–18
2. Alexandrowicz Z (ed.) (2000) Crystal Caves in the Wieliczka Salt Mine. Stud Nat 46:1–205
3. Alexandrowicz SW, Alexandrowicz Z (1999) Selected geosites of the Cracow Upland. Pol Geol Inst Spec Papers 2:53–60
4. Alexandrowicz Z, Alexandrowicz SW (2004) Geoparks—the most valuable landscape parks in southern Poland. Pol Geol Inst Spec Papers 13:49–56
5. Alexandrowicz Z, Gonera M (1994) Conservation system of geological sites in the old salt mine of Wieliczka (south Poland). In: O'Halloran D, Green C, Stanley M, Knill J (eds) Geological and landscape conservation. Geological Society, London, pp 417–422