@article{Kowalik_S._The_2011,
 author={Kowalik, S. and Kędzierski, W.},
 number={No 3},
 howpublished={online},
 journal={Polish Journal of Veterinary Sciences},
 year={2011},
 publisher={Polish Academy of Sciences Committee of Veterinary Sciences},
 publisher={University of Warmia and Mazury in Olsztyn},
 title={The effect of interval versus continuous exercise on plasma leptin and ghrelin concentration in young trotters},
 doi={10.2478/v10181-011-0056-1},
}