CERI, S. ., M. . Matera, P. . Dolog, and W. . Nejdl. “Adding Client-Side Adaptation to the Conceptual Design of E-Learning Web Applications”. Journal of Web Engineering, vol. 4, no. 1, Dec. 2005, pp. 021-37, https://journals.riverpublishers.com/index.php/JWE/article/view/4335.