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Brockhaus-1809: Renatus Descartes
Brockhaus-1911: Descartes
Herder-1854: Descartes
Lueger-1904: Folium von Descartes
Mauthner-1923: Descartes' Naturphilosophie
Meyers-1905: Descartes
Pierer-1857: Descartes