@article{642773,
      author = {Holland, John H.},
      url = {http://library.usi.edu/record/642773},
      title = {Signals and boundaries building blocks for complex  adaptive systems / [electronic resource] :},
      publisher = {MIT Press,},
      recid = {642773},
      pages = {1 online resource (viii, 308 p.) :},
      address = {Cambridge, Mass. :},
      year = {2012},
}