@ARTICLE{Śmiałek_M._Practical_2016, author={Śmiałek, M. and Śmiałek, A. and Koncicki, A.}, number={No 2}, journal={Polish Journal of Veterinary Sciences}, howpublished={online}, year={2016}, publisher={Polish Academy of Sciences Committee of Veterinary Sciences}, publisher={University of Warmia and Mazury in Olsztyn}, title={Practical aspects of estimation of optimal time for vaccination of chicken against IBD with use of „Deventer formula”}, URL={http://journals.pan.pl/Content/105385/PDF/24.pdf}, doi={10.1515/pjvs-2016-0053}, }