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Neformalna i skrita ikonomičeska aktivnost v konteksta na izčerpatelnostta na nacionalnite smetki
Todorov, Todor, (1999)
Bulgaria and East Germany : domestic final uses of gross product, structure and growth, selected years, 1965 - 1978
Lazarcik, Gregor, (1979)
Bulgaria's national income and economic growth, 1913 - 45
Rangelova, Rosica, (2000)
Lessons from labour market policies in the transition countries
(1996)
Small firms as foreign investors : case studies from transition economies
Assessing investment opportuninities in economies in transition
(1994)