Bormann, P. External Organizations;
Grünthal, Gottfried 2.6 Seismic Hazard and Stress Field, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
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Bormann, P., Grünthal, G. (1991): Main results of the complex seismological monitoring and analysis of the swarm earthquake activity in the region Vogtland/Western Bohemia in Central Europe, Proceedings of the 5th Seminar on Earthquake Prognostics (Lagos 1990) (Lagos, Nigeria).