@book { DasbetrieblicheVorschlagswesen,
    title = "Das betriebliche Vorschlagswesen",
    author = "Bastian {Higi}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638012164",
    url = "https://www.hausarbeiten.de/document/87239"
}