RT Article T1 Hesiod and Parmenides in Nag Hammadi JF Vigiliae christianae VO 35 IS 2 SP 174 OP 182 A1 Mansfeld, Jaap 1936- LA English PB Brill YR 1981 UL https://ixtheo.de/Record/1641487089 K1 Nag-Hammadi-Schriften K1 Griechische Literatur