@misc{Esper_Eugen_Johann_Christoph_(1742–1810)_Die_1794,
 author={Esper, Eugen Johann Christoph (1742–1810) and Walther, Wolfgang (17..-17..). Wyd},
 editor={Walther, Wolfgang (17..-17..). Wyd},
 copyright={Public Domain},
 address={Erlangen},
 howpublished={online},
 year={1794},
 publisher={im Verlage Wolfgang Walthers},
 language={ger},
 title={Die Schmetterlinge in Abbildungen nach der Natur mit Beschreibungen. T. 5},
 URL={http://rcin.org.pl/miiz/Content/56191/PDF/WA058_74419_K5048-8_Schmett-Abbild-Suppl.pdf},
 keywords={early printed books, Lepidoptera, butterflies, early works to 1800},
}