@book { AnalytischeMethodeninderWirtschaft,
    title = "Analytische Methoden in der Wirtschaft",
    author = " {Hochschule Wismar} and Emil {Larek}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01463-1",
    url = "https://www.peterlang.com/document/1051885"
}