COLLINS, Robert - KRISTENSEN, Peter - THYSSEN, Niels. Water resources across Europe : confronting water scarcity and drought. Luxembourg : Office for Official Publications of the European Communities, 2009. 55 s. EEA report, no. 2 /2009. Dostupné na internetu: <http://www.eea.europa.eu/publications/water-resources-across-europe> ISBN 978-92-9167-989-8.