@misc{Czechowski_Wojciech_(1950–_)_Mixed_2001,
 author={Czechowski, Wojciech (1950– )},
 volume={51},
 number={2},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Annales Zoologici},
 howpublished={online},
 year={2001},
 publisher={Muzeum i Instytut Zoologii PAN},
 language={eng},
 type={Text},
 title={Mixed colony of Formica pratensis Retz. + Formica cinerea Mayr + Formica sanguinea Latr. (Hymenoptera: Formicidae) and its presumed origin},
 URL={http://rcin.org.pl/miiz/Content/55603/PDF/WA058_51466_P255-T51_Annal-Zool-Nr-2-9.pdf},
 keywords={slavery, social parasitism, mixed colonies, Formica sanguinea, Formica cinerea, Formica pratensis, ants, colony founding},
}