@book { DieDarstellungvonMarken,
    title = "Die Darstellung von Marken",
    author = "Caroline {Trenner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b18668",
    url = "https://www.peterlang.com/document/1160010"
}