@article{460277,
      url = {http://library.usi.edu/record/460277},
      title = {Assessment of planetary protection requirements for  spacecraft missions to icy solar system bodies [electronic  resource] /},
      publisher = {National Academies Press,},
      recid = {460277},
      pages = {x, 83 p. :},
      address = {Washington, D.C. :},
      year = {2012},
}