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Bogdanov, Boris, Georgi Gocev, and Neno Hristov. ??????????? ?? ??????????????? ?? ??????? ?? ????? ?? ?????????? ?? ????????? ?? ?????? ?? ???????????? ????????? In CSDM Views. ?????: ?????? ?? ?????????? ?? ??????????? ? ?????????, 2013.

"Scenario 1a. Allied defence operation on the territory of Republic of Bulgaria or activities for resolving of a military-political crisis in a national format." In Methodology and scenarios for defense planning. Sofia: Ministry of Defence, Directorate "Defence Policy", Military Publishing House, 2007.