@article{170458,
      note = {Bibliography: p. 18-20.},
      url = {http://digitallibrary.un.org/record/170458},
      title = {Estimation of the population's outdoor exposure to  nitrogen dioxide and ozone and the resulting impacts in  Europe : report /},
      publisher = {UN,},
      recid = {170458},
      pages = {21 p. :},
      address = {Geneva :. 1994-12-20},
      year = {1994},
      month = {Dec},
}