@misc{Bystrek_Jan_(1934-_)_Effect,
 author={Bystrek, Jan (1934- ) and Kolanko, Katarzyna},
 howpublished={online},
 publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej},
 language={pol ; eng},
 type={artykuł},
 title={Effect of Anthropopressure on Epiphytic Flora of Lichens as Exemplifled by the Białowieża Primeval Forest},
 keywords={porosty (Lichenes), antropopresja, Puszcza Białowieska},
}