Stavelot-Malmedy. Carte géologique de Wallonie. 50/5-6. Notice explicative ; Stavelot-Malmedy. Geological map of Wallonia. 50/5-6. Leaflet

New geological map of Wallonia that will be published at the scale of 1/25.000, based on a new field work and using previous scientific data produced, since the first edition published in 1899 (Gustave Dewalque) at the scale of 1/40,000 by the "Commission Géologique de Belgique" and the second one, published in 1963 (Fernand Geukens) at the scale of 1/25,000 by the Geological Survey of Belgium. ; Révision et 3ème édition ; Programme de révision de la carte géologique de Wallonie. Recherches collectives d'intérêt général.