1. Untersuchungen zur quartären Bruchtektonik der Niederrheinischen Bucht;Ahorner;Eiszeitalter Ggw.,1962
2. Present-day stress field and seismotectonic block movements along major fault zones in Central Europe;Ahorner;Tectonophysics,1975
3. 3 Ahorner L. ,1983.Historical seismicity and present-day microearthquake activity of the Rhenish Massif, Central Europe, in. Plateau Uplift pp. 188-198, eds Fuchs, K., von Gehlen, K., Mälzer, H., Murowski, H. & Semmel, A., Springer Verlag, Berlin.
4. Fault-plane solutions and source parameters of the 1992 Roermond, the Netherlands, mainshock and its stronger aftershocks from regional seismic data;Ahorner;Geol. Mijn.,1994
5. The distribution of earthquakes causing damage on the territory of the Federal Republic of Germany. An attempt of seismic regionalisation;Ahorner;Zeitschrift Geophys.,1970