@ARTICLE{Piątkowska_M._Residues_2012, author={Piątkowska, M. and Żmudzki, J. and Jedziniak, P.}, number={No 4}, journal={Polish Journal of Veterinary Sciences}, howpublished={online}, year={2012}, publisher={Polish Academy of Sciences Committee of Veterinary Sciences}, publisher={University of Warmia and Mazury in Olsztyn}, title={Residues of veterinary medicinal products and coccidiostats in eggs – causes, control and results of surveillance program in Poland}, URL={http://www.czasopisma.pan.pl/Content/99115/PDF/30_paper.pdf}, doi={10.2478/v10181-012-0123-2}, }