Richard Phené Spiers, 1911 Encyclopedia Britannica (1911)
“ An early example in France exists in the church of Germigny-des-Prés on the Loire (806; rebuilt 1868) , where the three apses are horseshoe on plan, and the same is found in the church at Oberzell in the island of Reichenau, Lake of Constance, except that the eastern apse there is square. Small examples also are found at Querqueville and at St Wandrille near Caudebec, both in Normandy, but the finest development takes place in the church of St Maria im Capitol at Cologne, where the aisles are carried round both the northern and southern apses. ”
