• Postglacial seismic activity of the SE Fennoscandia and EstoniaSõstra, Ülo; Spungin, Vadim15th Meeting of the Association of European Geological Societies "Georesources and public policy : research, management, environment" : 16-20 September 2007, Tallinn, Estonia : abstracts2007 / p. 77-78 https://www.ester.ee/record=b2291667*est