"The Art Confiscations of the Napoleonic Wars"
Dorothy Mackay Quynn
The American Historical Review, Vol. 50, No. 3 (Apr., 1945), pp. 437-460
"The Altarpiece of the Life of Saint Ambrose by Juan de Valdés Leal"
Duncan T. Kinkead
The Art Bulletin, Vol. 64, No. 3 (Sep., 1982), pp. 472-481
Cheers
C