@article{386697,
      author = {Silver, M. S.},
      url = {http://library.usi.edu/record/386697},
      title = {An index number formula problem: the aggregation of  broadly comparable items /},
      publisher = {International Monetary Fund,},
      recid = {386697},
      pages = {20 p.},
      address = {[Washington D.C.] :},
      year = {2009},
}