@book { DiebestenSexWitzeallerZeiten,
    title = "Die besten Sex-Witze aller Zeiten",
    author = "Joe G. {Hirschhagel}",
    year = "2012",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    doi = "10.3239/9783955200879",
    url = "https://m.dotbooks.de/document/204645"
}