@Article{178572,
     author = "Jerzy J. Parysek, Lidia Mierzejewska",
     title = "Income and expenditure of the Polish population in 2006 : (an analysis of regional diversification) ",
     year =  2010,
     volume =  ,
     number =  13,
     journal =  Bulletin of Geography. Socio-Economic Series,
     pages =  s. 89-102,
    }