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Willi Oelmüller, Ruth Dölle-Oelmüller, Carl-Friedrich Geyer (1983) Diskurs: Metaphysik, Paderborn, Schöningh.
Metaphysik im Menschen
Bernhard Waldenfels
pp. 284-291
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(1947) "Le métaphysique dans l'homme", Revue de métaphysique et de morale 523-4, pp.290-307.