@inproceedings{AlAbdulwahidClarkeStengeletal.2015,
  author    = {Al Abdulwahid, Abdulwahid and Clarke, Nathan and Stengel, Ingo and Furnell, Steven and Reich, Christoph},
  title     = {The Current Use of Authentication Technologies: An Investigative Review},
  series = {International Conference on Cloud Computing (ICCC), Riyadh, 2015},
  booktitle = {International Conference on Cloud Computing (ICCC), Riyadh, 2015},
  isbn      = {978-1-4673-6618-2},
  doi       = {10.1109/CLOUDCOMP.2015.7149658},
  pages     = {239 -- 246},
  year      = {2015},
  language  = {en}
}
@article{AlAbdulwahidClarkeStengeletal.2016,
  author    = {Al Abdulwahid, Abdulwahid and Clarke, Nathan and Stengel, Ingo and Furnell, Steven and Reich, Christoph},
  title     = {Continuous and transparent multimodal authentication: reviewing the state of the art},
  series = {Cluster Computing: The Journal of Networks, Software Tools and Applications},
  volume    = {19.2016},
  journal   = {Cluster Computing: The Journal of Networks, Software Tools and Applications},
  number    = {1},
  issn      = {1386-7857},
  doi       = {10.1007/s10586-015-0510-4},
  pages     = {455 -- 474},
  year      = {2016},
  language  = {en}
}