@book { WasserbelebungamBeispielGranderTechnologie,
    title = "Wasserbelebung am Beispiel Grander-Technologie",
    author = "Katrin {Zunkovic}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640589289",
    url = "https://www.hausarbeiten.de/document/142106"
}