Vigilemus et Oremus : the theological significance of 'keeping vigil' in Rome from the fourth to the eighth centuries - Sabak, James G., <ofm>. (OLS)http://semarc/name/119419 (Brepols,, 2021)
Testo rivisto della tesi, Leuven, 2012
Bibliography, p. [393]-400
Keywords: Chiesa primitiva e delle origini <ca. 30-600>. (OLS)http://semarc/subject/1281; Vigilia - Liturgia - Storia. (OLS)http://semarc/subject/7081; Chiesa primitiva e delle origini <ca. 30-600> - Liturgia. (OLS)http://semarc/subject/30902