THEOTOKIS, G. Rus, Varangian and Frankish mercenaries in the service of the Byzantine Emperors (9th-11th c.): Numbers, Organisation and Battle Tactics in the operational theatres of Asia Minor and the Balkans. Byzantina Symmeikta, [S. l.], v. 22, p. 125–156, 2012. DOI: 10.12681/byzsym.1039. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/bz/article/view/3777. Acesso em: 5 may. 2024.