Ali Awde and Yacine Bellik and Chakib Tadj, Complexity of Mathematical Expressions in Adaptive Multimodal Multimedia System Ensuring Access to Mathematics for Visually Impaired Users. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. March 2008, vol. 15(3). 187 - 199 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/11248.