1. Historical seismicity and present-day microearthquake activity of the Rhenish Massif, Central Europe;Ahorner,1983
2. Das Erdbeben bei Roermond am 13;Ahorner;Dtsch. Geophys. Ges. Mitt.,1992
3. General pattern of seismotectonic dislocation and the earthquake-generating field in central Europe between the Alps and the North Sea;Ahorner,1983
4. Determination of the mean principal directions of stresses for a given fault population;Angelier;Tectonophysics,1979
5. Inversion of field data in fault tectonics to obtain the regional stress, 1. Single phase fault populations: a new method of computing the stress tensor;Angelier;Geophys. J. R. Astron. Soc.,1982