On the Gauss-Manin Connection of an Isolated Hypersurface Singularity. J. Scherk — 1978 Mathematische Annalen
On the Mixed Hodge Structure on the Cohomology of the Milnor Fibre. J. Scherk; J.H.M. Steenbrink — 1985 Mathematische Annalen
On the Highest Weight Deformation of a Quasihomogeneous Surface Singularity. F. Ehlers; J. Scherk — 1989 Mathematische Zeitschrift
Links of surface singularities and CR space forms. F. Ehlers; W.D. Neumann; J. Scherk — 1987 Commentarii mathematici Helvetici