@book { MarkenalsGrundlagederKreditsicherung,
    title = "Marken als Grundlage der Kreditsicherung",
    author = "Andreas {Warth}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103295"
}