@Article{247101,
     author = "Edyta Szafranek",
     title = "Transformation of the economic structures in the Opole region in the years 1994-2002 ",
     year =  2004,
     volume =  ,
     number =  3,
     journal =  Bulletin of Geography. Socio-Economic Series,
     pages =  s. 23-39,
    }