@ARTICLE{Burmańczuk_A._Withdrawal_2017, author={Burmańczuk, A. and Grabowski, T. and Kowalski, C. and Błądek, T. and Dębiak, P.}, number={No 2}, journal={Polish Journal of Veterinary Sciences}, howpublished={online}, year={2017}, publisher={Polish Academy of Sciences Committee of Veterinary Sciences}, publisher={University of Warmia and Mazury in Olsztyn}, title={Withdrawal of cefoperazone with milk after intramammary administration in dairy cows – prospective and retrospective analysis}, URL={http://www.czasopisma.pan.pl/Content/107458/PDF/167.pdf}, doi={10.1515/pjvs-2017-0031}, }