@book { Upcyclingaltoderneugrnoderhip,
    title = "Upcycling - alt oder neu, grün oder hip?",
    author = "Ava {Tress}",
    year = "2016",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/346571"
}