1. M. Gratacós Curbasí. Desarrollo de métodos rápidos para el análisis de residuos en producción animal. (PhD Thesis University of Girona, Spain), 2007. Available in: http://www.tesisenred.net/TDX-0707108-153454. Last visit 07/06/2010.
2. Commission Regulation (EU) No 37/2010 of 22 December 2009 on pharmacologically active substances and their classification regarding maximum residue limits in foodstuffs of animal origin. Available in: http://eur-lex.europa.eu, (last visit 17/06/2011).
3. Commission Staff Working Paper on the implementation of national residue monitoring plans in the Member States in 2008. (Council Directive 96/23/EC).
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