@book { BaukastenBrobauten,
    title = "Baukasten Bürobauten",
    subtitle = "Low-Mid-High Cost Szenarien",
    author = "Martin {Moesl}",
    year = "2015",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/311664"
}