RT Article T1 Epistolai JF Epistolai diaphorōn philosophōn, rhētorōn, sophistōn, hex pros tois eikosi ; 1: @[Epistolarum pars prima] IS 90 A1 Heraclitus, Ephesius 550 v.Chr.-480 v.Chr LA Undetermined YR 1499 UL https://ixtheo.de/Record/143845926