@book { StrategischeKooperationeninderMultimediaindustrie,
    title = "Strategische Kooperationen in der Multimediaindustrie",
    author = "Dirk {Markus}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088958"
}