Geopolitical and Geo-economic Changes in the Baltic Sea Region at the Turn of the XX—XXI centuries
...
https://www.cia.gov/library/publications/the-world-factbook/geos/xx.html
(accessed 10.07.2016).
Kretinin Gennady V., Katrovskiy Alexander P., Pototskaya Tatyana I., Fedorov Gennady M.
10.5922/2079-8555-2016-4-2
13-25
countries of the Baltic Sea region, geopolitical changes, geoeconomic changes