@book { MiraufderSpur,
    title = "Mir auf der Spur",
    author = "Gregor von {Rezzori}",
    year = "2012",
    publisher = "hey! publishing",
    address = "München, Deutschland",
    doi = "10.3239/9783942822268",
    url = "https://www.heypublishing.com/document/206775"
}