Grasselli, G.Egger, P.2006-11-092006-11-092006-11-09200310.1016/S1365-1609(02)00101-6https://infoscience.epfl.ch/handle/20.500.14299/235628WOS:0001809835000033281Constitutive law for the shear strength of rock joints based on three-dimensional surface parameterstext::journal::journal article::research article