1. Hydraulic conductivity of the chalk at shallow depths in north-west Norfolk, UK;Allen,1990
2. Modelling goundwater flow and transport in the chalk. The Hydrogeology of the Chalk of North-West Europe;Barker,1993
3. A diffusion exchange model for solute movement in fissured porous rock;Barker;Q. J. Eng. Geol.,1981
4. Biver, P., 1993. Etude phénoménologique et numérique de la propagation de polluants miscibles dans un milieu à porosité multiple (phenomenological and numerical study of miscible contaminant propagation in a multiporosity medium), in French, PhD thesis, University of Liège, Faculty of Applied Sciences. 389 pp.
5. Brouyère, S., 2001. Etude et modélisation du transport et du piégeage des solutés en milieu souterrain variablement saturé (study and modelling of transport and retardation of solutes in variably saturated media), in French, PhD Thesis, University of Liège, Faculty of Applied Sciences, 572 pp.