Herodotus, Book VIII.135.1.
Strabo, Geography, ΙΧ 2.27, 2.34.
Hellenica Oxyrhynchia XVI 3.
Pausanias, Description of Greece, ΙΧ XXIII.5.
FGrHist 115= Jacoby, F., Fragmente Griechischer Historiker, Theopompus Chius, fr. 362.
Inscriptiones Graecae, Vol. VII, Inscriptiones Megaridis et Boeotiae, (ed.) W. Dittemberger, IG VII 41356 και 28711.
Plutarch, Moralia, De defectu oraculorum.