Diego R. Fittipaldi, "The Typikon of Mâr Saba in the XIII Century or what and when to read in the Monastic Byzantine Liturgy", Temas Medievales 23 (2015), pp. 89-113
Source : https://www.academia.edu/33012438/T..._LITURGY?auto=bookmark&campaign=weekly_digest
Source : https://www.academia.edu/33012438/T..._LITURGY?auto=bookmark&campaign=weekly_digest