Kaufmann, G., and D. Romanov. “Modelling Speleogenesis in Soluble Rocks: A Case Study from the Permian Zechstein Sequences Exposed Along the Southern Harz Mountains and the Kyffhäuser Hills, German”. Acta Carsologica, vol. 48, no. 2, Dec. 2019, doi:10.3986/ac.v48i2.7282.