@Article{468884,
     author = "Ewa Wędrowska",
     title = "Application of Kullback-Leibler Relative Entropy for Studies on the Divergence of Household Expenditures Structures",
     year =  2011,
     volume =  6,
     number =  1,
     journal =  Olsztyn Economic Journal,
     pages =  s. 133-142,
    }