@Article{obiedkov2009building,
  author = {Obiedkov, Sergei and Kourie, Derrick G. and Eloff, J.H.P.},
  title  = {Building access control models with attribute exploration},
  journal = {Computers and Security},
  year   = {2009},
  number = {1–2},
  url    = {http://www.sciencedirect.com/science/article/pii/S0167404808000497},
  doi = {10.1016/j.cose.2008.07.011},
  const  = {\ text}
}