@book { VirtualittimMinnesangum1200,
    title = "Virtualität im Minnesang um 1200",
    subtitle = "Transdisziplinäre Analysen",
    author = "Nicolas {Mittler}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b10769",
    url = "https://www.peterlang.com/document/1054860"
}