@book { DescartesmethodischerZweifelimdigitalenZeitalter,
    title = "Descartes methodischer Zweifel im digitalen Zeitalter",
    author = "Holger {Beha}",
    year = "2004",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640072002",
    url = "https://m.hausarbeiten.de/document/109013"
}