@book { HandelsmarkenvsHerstellermarken,
    title = "Handelsmarken vs. Herstellermarken",
    author = "Björn {Schulte}",
    year = "2006",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638461153",
    url = "https://www.hausarbeiten.de/document/49750"
}