@Article{sharples09,
  author = {Sharples, Michael and Graber, R. and Harrison, C. and Logan, Kit},
  title  = {E-safety and Web 2.0 for children aged 11-16},
  journal = {Journal of Computer Assisted Learning},
  year   = {2009},
  number = {1},
  url    = {http://www3.interscience.wiley.com/journal/121640390/abstract},
  doi = {10.1111/j.1365-2729.2008.00304.x},
  const  = {\ text}
}