@book { SexualittJugendschutzundMenschenrechte,
    title = "Sexualität, Jugendschutz und Menschenrechte",
    author = "Helmut {Graupner}",
    year = "1998",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086127"
}