TY - JOUR TI - The Ceremonial Book of Constantine Porphyrogennetos JF - The English Historical Review AU - John B. Bury PB - Oxford University Press UR - https://www.jstor.org/stable/10.2307/550563 PY - 1907 EP - 227 SP - 209 SN - 00138266 SN - 14774534 IS - 86 VL - 22 ER -