During which period Rositsa Yanakieva served as the Mayor of a city in Europe's 16th-largest country?
Bulgaria Bulgaria ( ; Bulgarian: България , "Bǎlgariya "), officially the Republic of Bulgaria (Bulgarian: Република България , "Republika Bǎlgariya ", ] ), is a country in southeastern Europe. It is bordered by Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. With a territory of 110994 km2 , Bulgaria is Europe's 16th-largest country.
Rivne Rivne (Ukrainian: Рівне ] ; Russian: Ровно , "Rovno " ; Polish: "Równe" ) is a historic city in western Ukraine and the historical region of Volhynia. It is the administrative center of Rivne Oblast (province), as well as the surrounding Rivne Raion (district) within the oblast. Administratively, Rivne is incorporated as a city of oblast significance and does not belong to the raion. The estimated population was around 250,242 as of 2013 .