@Book{Wagner1837,
author  = "Wagner, Johann Andreas",
title   = "Beiträge zur Kenntniss der warmblütigen Wirbelthiere Amerika's",
year    = "1837",
address = "München",
series  = "Abhandlungen",
volume  = "2,9",
url     = "https://publikationen.badw.de/de/003082758",
}