@article{271903,
      recid = {271903},
      author = {Bak, P.},
      title = {How nature works : the science of self-organized  criticality /},
      publisher = {Copernicus,},
      address = {New York :},
      pages = {xiii, 212 p., [8] p. of plates :},
      year = {1999},
      url = {http://library.usi.edu/record/271903},
}