Polish Journal of Veterinary Sciences
Polish Journal of Veterinary Sciences > 2008 > 11 > 1 > 67-69
Polish Journal of Veterinary Sciences > 2008 > 11 > 3 > 209-212
Polish Journal of Veterinary Sciences > 2010 > 13 > 1 > 129-135
Polish Journal of Veterinary Sciences > 2010 > 13 > 1 > 157-162