Collective work published as editor or director (Books)Upper Cretaceous and Dinantian geology and hydrogeology of the Thermae boreholes of Valkenburg aan de geul (South -Limburg, The Netherlands)
Bless, M.J.M.; Bouckaert, J.; Langguth, H-R et al.
1987 • Société géologique de Belgique, Liège, Belgium