@book { MartinHeideggerJeanPaulSartreHannahArendt,
    title = "Martin Heidegger - Jean-Paul Sartre - Hannah Arendt",
    author = "Axel {Schubert}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640158485",
    url = "https://www.hausarbeiten.de/document/114303"
}