1. 1. Scheirer, J., Fernandez, R., Klein, J. and Picard, R.; Frustrating the user on Purpose: a step toward building an affective computer, Interacting with Computers, 14, pp.93-118 (2002).
2. 2. Moulay Akhloufi, Abdelhakim Bendada, Jean Christphone Batsale; State of the art in Infrared Face Recognition, QIRT Journal, Volume X, pp.1-24, 2008.
3. 3. Mohd Norzali, Masayuki Kashima, Kiminori Sato, Mutsumi Watanabe; Effective geometric calibration and facial feature extraction using multi sensors, International Journal of Engineering Science and Innovative Technology (IJESIT), December 2012, Vol.1, Issue 2, pp.170-178, November 2012.
4. 4. Mohd Norzali, Masayuki Kashima, Kiminori Sato, Mutsumi Watanabe; Thermal-Visual Facial Feature Extraction Based on Nostril Mask, IAPR-Machine Vision Application 2013, Kyoto, May 21-23, 2013.
5. 5. J. Levine, I. Pavlidis, and M.Cooper; The face of Fear, Lancet, Vol.357, No.9270, p.1757, Jun. 2001.