1. Abu-Hassanein Z, Benson C, Wang X, Blotz L (1996) Determining bentonite content in soil-bentonite mixtures using electrical conductivity. Geotech Test J 19(1):51–55
2. Agus SS, Schanz T (2005) Swelling pressure and total suction of compacted bentonite sand mixtures. Pro. of Int. Conf. on Problematic Soils (Eds.Bilsel, H and Nalbantoglu, Z). North Cyprus, 1,10p
3. Arcos D, Grandia F, Doménech C (2006) Geotechnical evolution of the near field of a KBS-3 repository, 5 KB Technical Report No. TR.06-16. Stockholm 97 pp
4. Barber ES (1954) Discussion of engineering properties of expansive clays. By Holtz, W.G. and Gibbs, H.G. J Soil Mech Found Div, ASCE 80(516):19–30
5. Barbour SL, Fredlund DG (1989) Mechanisms of osmotic flow and volume changes in clay soils. Can Geotech J 26:551–556