@article{Socha_W._Variability_2015,
 author={Socha, W. and Rola, J. and Żmudziński, J.F.},
 number={No 2},
 howpublished={online},
 journal={Polish Journal of Veterinary Sciences},
 year={2015},
 publisher={Polish Academy of Sciences Committee of Veterinary Sciences},
 publisher={University of Warmia and Mazury in Olsztyn},
 title={Variability of non-structural proteins of equine arteritis virus during persistent infection of the stallion},
 doi={10.1515/pjvs-2015-0033},
}