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Pridolian–Lochkovian macrofaunas from southern Belgium and northern France: de Koninck (1876) revisited
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Huy-Nandrin. Carte géologique de Wallonie. 48/3-4 ; Huy-Nandrin. Geological map of Wallonia. 48/3-4
Sart-Xhoffraix. Carte géologique de Wallonie. 50/1-2. Notice explicative ; Sart-Xhoffraix. Geological of Wallonia (Belgium). 50/1-2. Leaflet
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Sart - Xhoffraix. Carte géologique de Wallonie. 50/1-2 ; Sart - Xhoffraix. Geological map of Wallonia (Belgium). 50/1-2
Les acritarches de l’Ordovicien et du Silurien belges. Détermination et valeur stratigraphique
Description du terrain silurien du centre de la Belgique
The silurian chitinozoa of the Mehaigne area
Systematic Revision of Elektoriskos williereae and Dilatosphaera williereae (Acritarchs) and its Bearing on Silurian (Llandoverian) Stratigraphy
The lower Palaeozoic stratigraphy and sedimentology of the Brabant massif in the Dyle and Orneau valleys and of the Condroz inlier at Fosses: an excursion guidebook
The stratigraphy of the type locality of the ?Late Wenlock/Early Ludlow Mont Godart formation and the Early Ludlow Ronquières formation, Brabant Massif