@article{bibcite_17840,
  author = {Sidney D{\textquoteright}Mello and Andrew Olney and Claire Williams and Patrick Hays},
  title = {Gaze tutor: Agaze-reactive intelligent tutoring system},
  year = {2012},
  journal = {International Journal of Human-Computer Studies},
  volume = {70},
  pages = {377{\textendash}398},
  language = {eng},
}