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2020, Vol. 43

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Contents
  1. Daniel Ishlyamski, Bozhurka Georgieva, Neli Jordanova – Geophysical magnetometric study on the degree of anthropogenic pollution at children playgrounds in the city of Sofia
  2. Dimcho Solakov, Irena Aleksandrova, Stela Simeonova, Plamena Raykova – The devastating earthquake of September 30(18), 1858
  3. Plamen Mukhtarov, Nikolay Miloshev, Georgi Gadzhev, Rumiana Bojilova – Monitoring and forecasting the biologically active ultraviolet radiation of the Sun
  4. Metodi Metodiev, Petya Trifonova – Annual report of the observed geomagnetic activity in Panagjurishte observatory for 2015
  5. Dragomir Dragomirov, Emil Oynakov, Valentin Buchakchiev, Yordan Milkov – Seismicity on the territory of Bulgaria and the adjacent lands recorded by NOTSSI in 2019
  6. Plamena Raykova – Estimation of earthquake source parameters using P and S-waves spectra – case study the 2012 seismic cluster in Sofia seismogenic zone
  7. Rumiana Bojilova, Plamen Mukhtarov – Short-term prediction of the ionospheric critical frequencies over Bulgaria
  8. Maria Chamati – ULF geomagnetic observation at Panagjurishte, Bulgaria, as a tool for investigation of the magnetosphere-ionosphere-lithosphere system
  9. Ivan Buchvarov – Geomagnetic field, geomagnetic measurements and models, field mapping
  10. Plamena Raykova – Estimation of source parameters for swarm type of seismicity
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences
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