R. Paepe, R. Souchez, G. Peeters, and M. Kugler (1970)
Le barrage de travertin de la vallée du Williers (sondages de Villers-devant-Orval)
Geological Survey of Belgium, vol. 1970/1 - N°51. Professional Paper of the Geological Survey of Belgium.
RBINS Publication(s)
40 pages, 1 figure
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