@ARTICLE{Rypuła_K._Reduction_2013,
 author={Rypuła, K. and Płoneczka-Janeczko, K. and Bania, J. and Wałecka, E. and Bierowiec, K. and Rozpędek, W.},
 number={No 2},
 journal={Polish Journal of Veterinary Sciences},
 howpublished={online},
 year={2013},
 publisher={Polish Academy of Sciences Committee of Veterinary Sciences},
 publisher={University of Warmia and Mazury in Olsztyn},
 title={Reduction of prevalence of persistent BVDV infection in cattle herds by long-term vaccination program (preliminary clinical study)},
 URL={http://ochroma.man.poznan.pl/Content/99161/PDF/23.pdf},
 doi={10.2478/pjvs-2013-0051},
}