"Is the Drava River Basin management sustainable and well on the way?"(PDF). International Symposium "Drava River Vision". Austrian Federal Ministry for Agriculture, Forestry, Environment and Water Management; Government of Carinthia, Department of Water Management. September 2008. Archived from the original(PDF) on 2017-08-07. Retrieved 2017-08-07.
"Is the Drava River Basin management sustainable and well on the way?"(PDF). International Symposium "Drava River Vision". Austrian Federal Ministry for Agriculture, Forestry, Environment and Water Management; Government of Carinthia, Department of Water Management. September 2008. Archived from the original(PDF) on 2017-08-07. Retrieved 2017-08-07.