@book { BetriebswirtschaftlicheEntscheidungslehre,
    title = "Betriebswirtschaftliche Entscheidungslehre",
    author = "Günter {Bamberg} and Adolf G. {Coenenberg} and Michael {Krapp}",
    year = "2019",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1221319"
}