Kladnik, D., Rejec Brancelj, I. and Smrekar, A. 2003. Dung Installations as Dangerous Point Sources Burdening the Groundwater of Ljubljansko Polje. Acta geographica Slovenica. 43, 2 (Dec. 2003), 121–139. DOI:https://doi.org/10.3986/AGS43204.