@book { MaterialundEinsatzgebietevonDoppelstoffen,
    title = "Material und Einsatzgebiete von Doppelstoffen",
    author = "Nina {Müller-Ramírez}",
    year = "2001",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640009657",
    url = "https://www.hausarbeiten.de/document/102585"
}