Clara Moura Soares and Maria João Neto are part of the International Congress VIII Centenary of the Cathedral of Burgos "El Mundo de las Catedrales", with the communication: "The Cathedral of Lisbon: Perspectives on a monument between the restorations of the first half of the 20th century and of the 21st century", on June 13th, in the afternoon, under the theme "The challenges of cathedrals in the 21st century".