Genus and τὸ τί ἦν εἶναι (essence) in Aristotle and Socrates, by Johannes Fritsche
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Johannes Fritsche, “Genus and τὸ τί ἦν εἶναι (essence) in Aristotle and Socrates,” in “In Memoriam Reiner Schürmann,” special issue, Graduate Faculty Philosophy Journal 19:2–20:1 (1997), pp. 163–202.