@book { MinnavonBarnhelmoderdasSoldatenglck,
    title = "Minna von Barnhelm oder das Soldatenglück",
    author = "Gunnar {Müller}",
    year = "2005",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638354639",
    url = "https://www.hausarbeiten.de/document/35600"
}