Bryndal, Tomasz. 2015. “The River Systems in Small Catchments in the Context of the Horton’s and Schumm’s Laws – Implication for Hydrological Modelling. The Case Study of the Polish Carpathians”. Quaestiones Geographicae 34 (1):85-98. https://doi.org/10.1515/quageo-2015-0008.