The Historia Mystagogica, and other Greek Commentaries on the Byzantine Liturgy
Brightman, F. E., "The Historia Mystagogica, and other Greek Commentaries on the Byzantine Liturgy", Journal of the Theological Studies 9, no. 35 (1908): 387-395.
https://www.jstor.org/stable/23949008
https://www.jstor.org/stable/23949008