Bakhouyi, Abdellah, et al. “A Semantic Web Solution for Enhancing The Interoperability of E-Learning Systems by Using Next Generation of SCORM Specifications”. International Journal of Emerging Technologies in Learning (iJET), vol. 14, no. 11, June 2019, pp. pp. 174-185, doi:10.3991/ijet.v14i11.10342.