Harnessing Collective Intelligence in Personal Learning Environments. - Mohamed Amine Chatti; Ulrik Schroeder; Hendrik Thüs; Simona Dakova (ICALT, 2012)

Tag-Based Collaborative Filtering Recommendation in Personal Learning Environments. - Mohamed Amine Chatti; Simona Dakova; Hendrik Thüs; Ulrik Schroeder (IEEE Trans. Learn. Technol., 2013)