@book { AlexandervonHumboldtZwischenEuropaundAmerika,
    title = "Alexander von Humboldt – Zwischen Europa und Amerika",
    author = "Sebastian {Krumpel}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14810",
    url = "https://www.peterlang.com/document/1110701"
}