@book { VideoundComputerspiele,
    title = "Video- und Computerspiele",
    author = "Layne {Menkens}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640809684",
    url = "https://www.hausarbeiten.de/document/165404"
}