@book { Markennamenswechsel,
    title = "Markennamenswechsel",
    author = "Roman {Weinand}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832443153",
    url = "https://m.diplom.de/document/219917"
}