Pernik (pĕrˈnĭk) [key], city (1993 pop. 91,075), W Bulgaria, on the Struma River. The industrial center of a coal-mining region, it has iron and steel smelters, glassworks, and power plants. Pernik is linked by rail with Sofia and Greece. It was known as Dimitrovo from 1949 to 1962.
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