@Book{Wagner1847,
author  = "Wagner, Johann Andreas",
title   = "Beiträge zur Kenntniss der Säugthiere Amerika's",
year    = "1847",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 5, Abth. 1 = [2]",
url     = "https://publikationen.badw.de/de/003796813",
}