@book { DarkTourismWasistdas,
    title = "Dark Tourism - Was ist das?",
    author = "Alexandra {Krüger}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656365372",
    url = "https://www.hausarbeiten.de/document/208772"
}