@Article{336722,
     author = "Andrzej Raczyk, Helena Dobrowolska-Kaniewska",
     title = "Economic activity and migration at the local scale ",
     year =  2006,
     volume =  ,
     number =  5,
     journal =  Bulletin of Geography. Socio-Economic Series,
     pages =  s. 65-76,
    }