@book { SeriousGamesinderWissensvermittlung,
    title = "Serious Games in der Wissensvermittlung",
    author = "Andreas {Ries}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656427209",
    url = "https://www.hausarbeiten.de/document/214436"
}