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L'Ordovicien et le Dévonien entre Remouchamps et Spa (carte Louveigné-Spa, 49/3-4) ; The Ordovician and the Devonian between Remouchamps and Spa (Louveigné-Spa map, 49/3-4)
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Carte géologique manuscrite de Spa (49/4) à l'échelle de 1:10.000 ; Handwritten geological map of Spa (49/4) at a scale of 1: 10,000
Guidebook of the Fieldtrip in the Stavelot Massif at the occasion of the 2019 E. Van den Broeck medal award. 4 October 2019.