@book { DasLebenundWerkvonLeopoldvonRanke,
    title = "Das Leben und Werk von Leopold von Ranke",
    author = "Andreas Dieter {Boldt}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/978-3-0353-0832-7",
    url = "https://www.peterlang.com/document/1053549"
}