1. Bąbel M (1999a) History of sedimentation of the Nida gypsum deposits (Middle Miocene, Carpathian Foredeep, Southern Poland). Geol Quart 43:429–447
2. Bąbel M (1999b) Facies and depositional environments of the Nida gypsum deposits (Middle Miocene, Carpathian Foredeep, Southern Poland). Geol Quart 43:405–428
3. Bąbel M (2007) Kopuły gipsowe w rzeźbie krasowej Ponidzia. Prace Inst Geogr Akad Świętokrzyskiej w Kielcach 16:71–89
4. Bąbel M, Urban J, Chwalik-Borowiec A (2018) Stop. 2.5. Chotel Czerwony. In: Głowniak E, Wasiłowska A (eds) IX symposium ProGEO, Poland 2018, field trip guidebook. Faculty of Geology, Univ. of Warsaw, Warsaw, pp 38–45
5. Calaforra JM, Gazquez F (2017) Gypsum speleogenesis: a hydrogeological classification of gypsum caves. Intern J Speleol 46:251–265