@misc{Wieruszewska_Maria_(opening_2012,
 author={Wieruszewska, Maria},
 number={1 (154)},
 copyright={Creative Commons Attribution BY 4.0 license},
 address={Warszawa},
 journal={Wieś i Rolnictwo},
 howpublished={online},
 year={2012},
 publisher={Instytut Rozwoju Wsi i Rolnictwa Polskiej Akademii Nauk},
 language={pl},
 title={(opening address)},
 type={Text},
 URL={http://rcin.org.pl./Content/242457/wir_2012_1_154_025_027.pdf},
}