A Delmer and P Vanwichelen (1980)
Répertoire des puits naturels connus en terrain houiller du Hainaut.
Geological Survey of Belgium Professional Paper, vol. 1980/5 N.172 p.
02840, 138, 139, 140, 141, 142, 150, 151, 152, 153, 161, 162, Ht, SYNAM, HAINE, 1, CARB, TN, KARST
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