RT Journal Article SR Electronic(1) A1 L. Urai, J. A1 Schmitz, R. A1 van der Zee, W. A1 Vrolijk, P.YR 2003 T1 Experimental Investigation of Clay Smear Processes in a Geotechnical Direct Shear Apparatus JF , VO OP SP cp-97-00039 DO https://doi.org/10.3997/2214-4609.201405849 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201405849