Shapira, A. External Organizations;
Kulhánek, O. External Organizations;
Wahlström, Rutger 2.6 Seismic Hazard and Stress Field, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Shapira, A., Kulhánek, O., Wahlström, R. (1979): Detectability of regional events by means of the Swedish seismography station network, (Uppsala Reports; 7-79).