@book { DerKlangunsererSeelen,
    title = "Der Klang unserer Seelen",
    subtitle = "Roman",
    author = "Christian {Pfannenschmidt}",
    year = "2019",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/459400"
}