[1] Institute of Applied Geosciences, Division of Hydrogeology, Karlsruhe Institute of Technology (KIT), Kaiserstr. 12, Karlsruhe
[2] Instituto do Carste, Rua Barcelona 240/302, Belo Horizonte, 30360-260, MG
[3] HydroSciences, University of Montpellier, UMR5569 - CC0057, 163 rue Auguste Broussonet, Montpellier
[4] Moheraroon, Kilfenora, Co. Clare
[5] Institute for Geology, Center for Earth System Research and Sustainability (CEN), University of Hamburg, Bundesstr. 55, Hamburg
[6] International Research Center on Karst (IRCK) under the Auspices of UNESCO and Key Laboratory of Karst Dynamics, Institute of Karst Geology, Guilin
[7] Department of Biogeochemistry/Geology, Leibniz Center for Tropical Marine Ecology (ZMT), Fahrenheitstr. 6, Bremen
[8] Federal Institute for Geosciences and Natural Resources, Sub-Department, International Cooperation, Stilleweg 2, Hannover
[9] Department of Hydrogeology, Centre for Karst Hydrogeology, Faculty of Mining & Geology, University of Belgrade, Djusina 7, Belgrade
[10] National Cave and Karst Research Institute, 400-1 Cascades Avenue, Carlsbad, 88220-6215, NM