@misc{Ryszkowski_L._Trophic_1973,
 author={Ryszkowski, L. and Goszczyński, J. and Truszkowski, J.},
 volume={18},
 number={7},
 copyright={Rights Reserved - Free Access},
 journal={Acta Theriologica},
 address={Białowieża},
 howpublished={online},
 year={1973},
 language={eng ; Sum. ang ; pol.},
 title={Trophic relationships of the common vole in cultivated fields},
 type={Text},
 URL={http://rcin.org.pl/ibs/Content/10191/PDF/BI002_2613_Cz-40-2_Acta-T18-nr7-124-165_o.pdf},
 keywords={Microtus arvalis, predators, trophic relationships, Nornik polny, powiązania troficzne, agrocenoza, drapieżnik},
}