1. Commission of the European Communities, “Towards a thematic strategy for soil protection,” COM (2002)179 final, 35 p (2002).
2. Commission of the European Communities, “Thematic strategy for soil protection,” COM (2006)231 final, 12 p (2006).
3. Soil Erosion Control on Arable Lands from North East Romania;Bucur,2011
4. Land Degradation by Erosion and Its Control in Romania;Nistor,2002
5. European Commission, “Study on Soil and Water in a changing environment,” Final Report, 271 p (2014).