Using the GCel for simulation of flow in the continental shelf region / Mark R. Roest, Edwin A.H. VollebregtOn the portability and efficiency of parallel algorithms and software / H.H. ten Cate and E.A.H. VollebregtSimulation of rough, elastic contacts / J.J. Kalker, F.M. Dekking, E.A.H. VollebregtSimulation of rough, elastic contacts / J.J. Kalker, F.M. Dekking, E.A.H. VollebregtA fast nonlinear conjugate gradient based method for 3D frictional contact problems / J. Zhao, E.A.H. Vollebregt and C.W. OosterleeExtending the BEM for elastic contact problems beyond the half-space approach / J. Zhao, E.A.H. Vollebregt and C.W. Oosterlee