1.
Etude stratigraphique des spores du Dévonien inférieur au bord sud du Synclinorium de Dinant (Belgique) et leurs applications
2.
The stratigraphy of the Middle Devonian in Belgium
A new spore assemblage to correlate between the Breconian (British Isles) and the Gedinnian (Belgium)
Biostratigraphy and sequence stratigraphy at the Devonian-Carboniferous transition in southern China (Hunan Province); comparison with southern Belgium
Middle Devonian (Givetian) megaspores from Belgium (Ronquières) and Libya (A1-69 borehole)
Updating Frasnian miospore zonation from the Boulonnais (Northern France) and comparison with new data from the Upper Palaeozoic cover on the Brabant Massif (Western Belgium)