R. Conil and J.M. Graulich (1970)
Les sondages d'études et d'injection du viaduc 62 (Welkenraedt) de l'autoroute E5
Geological Survey of Belgium, vol. 1970/4 - N°54. Professional Paper of the Geological Survey of Belgium.
RBINS Publication(s)
80 pages, 12 figures
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