@article{134272,
      recid = {134272},
      author = {Paludan, Johan Peter. and Kristensen, Thorkil,},
      title = {The Earth's fragile systems : perspectives on global  change /},
      publisher = {Westview Press,},
      address = {Boulder :},
      pages = {xiii, 109 p. :},
      year = {1988},
      url = {http://library.usi.edu/record/134272},
}