@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},
  number    = {1},
  issn      = {1386-7857},
  doi       = {10.1007/s10586-015-0510-4},
  pages     = {455 -- 474},
  year      = {2016},
  language  = {en}
}
@inproceedings{AlAbdulwahidClarkeStengeletal.2015,
  author    = {Al Abdulwahid, Abdulwahid and Clarke, Nathan and Stengel, Ingo and Furnell, Steven and Reich, Christoph},
  title     = {A Survey of Continuous and Transparent Multibiometric Authentication Systems},
  series = {14th European Conference on Cyber Warfare and Security ECCWS-2015, Hatfield, UK, 2015},
  isbn      = {978-1-910810-28-6},
  pages     = {10},
  year      = {2015},
  language  = {en}
}