@book { KonzeptentwicklunginderSuchtprvention,
    title = "Konzeptentwicklung in der Suchtprävention",
    subtitle = "Anhand des Praxisprojektes Phat for fun",
    author = "Heiko {Streuff} and Kay {Eckhoff}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832400408",
    url = "https://m.diplom.de/document/215998"
}