1. T. Kiely, D. Donaldson, A. Grube, Pesticide Industry Sales and Usage. 2000 and 2001 Marked Estimates, U.S. Environmental Protection Agency, Office of Prevention, Pesticides, and Toxic Substances (7503C), EPA-733-R-04-001, Washington, 2004, p. 27.
2. Occurrence of pesticides in Spanish surface waters. Analysis by high resolution gas chromatography coupled to mass spectrometry
3. Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framwork for community action in the field of water policy. Official Journal of the European Union L327, 22nd December 2000.
4. Decision 2001/2455/EC of the European Parliament and of the Council of 20 November 2001 establishing the list of priority substances in the field of water policy. Official Journal of the European Union L331, 15th December 2001.