@book { WerpasstzumirSieErHerz,
    title = "Wer passt zu mir? Sie+Er = Herz",
    author = "Christian {Thiel}",
    year = "2012",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403306"
}