Ringbom, Sixten. Icon to Narrative: The Rise of the Dramatic Close-up in Fifteenth-Century Devotional Painting. Acta Academiae Aboensis, series A, 31/2. Turku, Finland: Abo Akademi, 1965.

Ringbom, Sixten. Icon to Narrative: The Rise of the Dramatic Close-up in Fifteenth-Century Devotional Painting. Acta Academiae Aboensis, series A, 31/2. Turku, Finland: Abo Akademi, 1965.