The Athenian Agora 24; Late Antiquity A.D. 267-700; The Palace of Giants; Exploration and Identification; Southeast Court Xenophon, de re equestri IV.I Vitruvius VI.6.4 Rostovtzeff et al., Dura Europos, pp. 73-75 K. Anderson (Ancient Greek Horsemanship, Berkeley 1961), chapter VII G. Lafaye in C. Daremberg and E. Saglio, Dictionnaire des antiquités grecques et romaines, Paris 1875, II, i, s.v. equile, pp. 743-745 G. Lafaye in C. Daremberg and E. Saglio, Dictionnaire des antiquités grecques et romaines, Paris 1875, II, i, s.v. equitium, pp. 791-794