@misc{Iwan_Dariusz_Systematyka_1992,
 author={Iwan, Dariusz},
 editor={Trojan, Przemysław (1929– ). Promotor},
 editor={Polska Akademia Nauk. Instytut Zoologii},
 copyright={Rights Reserved - Restricted Access},
 address={Warszawa},
 howpublished={online},
 year={1992},
 publisher={Instytut Zoologii PAN},
 language={pol},
 title={Systematyka rodzaju Opatrinus Dejan, 1821 (Coleoptera, Tenebrionidae)},
 keywords={darkening beetles, Tenebrionidae, darkling beetles, insects, beetles, systematics, Opatrinus, Insecta},
}