Before venturing into the restoration, the reason behind it, and the rest, a quick brief about the cathedral. The Chartres Cathedral.
Re-Discovering Chartres: the Gothic Cathedral and Beyond - ArtTrav
The dismantling of the scaffolding of the great organ is now
Charles Nègre [Chartres Cathedral, Central Portal of the South
Chartres Cathedral History, Interior, Stained Glass, & Facts
Timeline of restoration: Chartres Cathedral - RTF
Chartres Cathedral - Grande Dame of French Gothic Architecture
Timeline of restoration: Chartres Cathedral - RTF
General Stained Glass Scheme – Chartres Cathedral
New Liturgical Movement: On the Restoration of Chartres Cathedral
Restoration work C'Chartres Tourisme