Magdalino 2003, Paul Stephenson, "The Balkan Frontier in the Year 1000", p. 112: "The Escorial Taktikon (or Taktikon Oikonomides), the modern name given to a precedence list drawn up in Constantinople between 975 and 979..." Magdalino, Paul, (Ed.) (2003). Byzantium in the Year 1000 (İngilizce). Leiden, Hollanda: Brill. ISBN90-04-12097-1.