@article{802674,
      author = {Barker, Philip. and Schaik, Paul van.},
      url = {http://library.usi.edu/record/802674},
      title = {Electronic performance support: using digital technology  to enhance human performance /},
      publisher = {Gower,},
      recid = {802674},
      pages = {xviii, 302 p. :},
      address = {Farnham ;},
      year = {2010},
}