ROSA NAVARRETE, and SERGIO LUJÁN-MORA. “A QUANTITATIVE ANALYSIS OF THE USE OF MICRODATA FOR SEMANTIC ANNOTATIONS ON EDUCATIONAL RESOURCES”. Journal of Web Engineering 17, no. 1-2 (April 13, 2018): 045–072. Accessed June 3, 2026. https://journals.riverpublishers.com/index.php/JWE/article/view/3239.