R. D. Barnett (1963). "Xenophon and the Wall of Media". The Journal of Hellenic Studies. The Journal of Hellenic Studies, Vol. 83. ۸۳: ۱–۲۶. doi:۱۰٫۲۳۰۷/۶۲۸۴۵۱. JSTOR۶۲۸۴۵۱. {{cite journal}}: Check |doi= value (help)
jstor.org
R. D. Barnett (1963). "Xenophon and the Wall of Media". The Journal of Hellenic Studies. The Journal of Hellenic Studies, Vol. 83. ۸۳: ۱–۲۶. doi:۱۰٫۲۳۰۷/۶۲۸۴۵۱. JSTOR۶۲۸۴۵۱. {{cite journal}}: Check |doi= value (help)