Biblio

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Filters: Автор is Sn. Rizhikova  [Clear All Filters]
1979
Grigorova, E., D. Sokerova, Ludmil Christoskov, and Sn. Rizhikova. Catalogue of the Earthquakes in the Territory of Bulgaria for the Period 1900-1977. Sofia: Bulgarian Acad¬emy of Sciences, Archives of the Geophysical Institute of BAS, 1979, 1979.
Christoskov, Ludmil, D. Sokerova, and Sn. Rizhikova. New Catalogue of the Earthquakes in the Territory of Bulgaria and Adjacent Region for the Period V century BC to XIX century. Sofia: Bulgarian Academy of Sciences, Archives of the Geophysical Institute of BAS, 1979, 1979.