Borsook, E., & Borsook, E. (1986). [Rezension von: Henk van Os, Sienese Altarpieces 1215-1460, vol. I, 1215-1344. With a contribution by Kees van der Ploeg "On architectural and liturgical aspects of Siena cathedral in the middle ages"]. Kunstchronik, 39(2), pp. 55-63.

Borsook, Eve, and Eve Borsook. "[Rezension Von: Henk Van Os, Sienese Altarpieces 1215-1460, Vol. I, 1215-1344. With a Contribution By Kees Van Der Ploeg "On Architectural and Liturgical Aspects of Siena Cathedral in the Middle Ages"]." Kunstchronik 39, no. 2 (1986): 55-63.

Borsook, Eve, and Eve Borsook. "[Rezension Von: Henk Van Os, Sienese Altarpieces 1215-1460, Vol. I, 1215-1344. With a Contribution By Kees Van Der Ploeg "On Architectural and Liturgical Aspects of Siena Cathedral in the Middle Ages"]." Kunstchronik 39.2 (1986): 55-63.