B. H. Kantowitz, Development of Nasa-TLX (Task Load Index): Results of Empirical and Theoretical Research, Human Mental Workload, vol.52, pp.139-183, 1988.

O. 'brien, H. L. Toms, and E. G. , What is user engagement? A conceptual framework for defining user engagement with technology, Journal of the American Society for Information Science & Technology, issue.6, pp.59-938, 2008.

D. C. Wickens and J. S. Mccarley, Applied Attention Theory, CRC, 2008.
DOI : 10.1201/9781420063363

C. D. Wickens, Multiple resources and performance prediction, Theoretical Issues in Ergonomics Science, vol.1, issue.2, pp.159-177
DOI : 10.1037/0096-1523.2.1.1

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.602.5010