IG II², 257 and 274 SEG XL, 68 Pausanias 1.24.4 Pausanias 28.10 Porphyry, de Abstinentia 2.29-30 Schol. Aristophanes, Pax 419 L. Daubner, Attische Feste, pp. 158-170 M.P. Nilsson, Geschichte der griechischen Religion I, 3rd ed., 1967, pp. 152-155, with bibliography p. 152, note 1