Plato, Protagoras, 315a I.G., II², 1628, lines 21, 30, 387-388 I.G., II², 1631, line 287 S.A. Koumanoudes, Ἀθήναιον, IV, 1875, pp. 195-197 U. Koehler, I.G. II, 864 J. Kirchner, I.G., II², 1742 P.A., 2090 Oxford Classical Dictionary², p. 113 K. Meisterhans, Grammatik der Attischen Inschriften³, 1900, pp. 40-46, 140-142 The Population of Athens in the Fifth and Fourth Centuries B.C., 1933, p. 51, note 2