Note 363 — Chapter III · APSE VAULTS
Reading edition
See also the apses of Saint Étienne at Caen, of Saint Martin-des-Champs at Paris and of Soissons cathedral transept. Other churches were probably originally designed without the flying-buttresses, among them Saint Remi at Reims. See Porter, II, p. 209 (from Lefevre-Pontalis).