Kimpe, W. F. M.; Bless, M. J. M.; Bouckaert, J.; Conil, R.; Groessens, E.; Poty, E.; Streel, M.; Thorez, J.; Vanguestaine, M. (1978). Paleozoic deposits east of the Brabant Massif in Belgium and the Netherlands. Mededelingen - Rijks Geologische Dienst. 30(2): 37-103.
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Kimpe, W. F. M.; Bless, M. J. M.; Bouckaert, J.; Conil, R.; Groessens, E.; Poty, E.; Streel, M.; Thorez, J.; Vanguestaine, M.
1978
Paleozoic deposits east of the Brabant Massif in Belgium and the Netherlands.