Wyniki
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A view on certain conditions for economic growth in Bulgaria (2008–2013)
Penka Shishmanova
Managerial Economics , 15 /2 (2014) s. 217-228 -
The central regions and the Sofia agglomeration area
Maria Shishmanova
Problemy Rozwoju Miast , 7 /4 (2010) s. 111-133