Diem Pham Thi Ngoc, Sébastien Iksal, Christophe Choquet, Evelyne Klinger. UTL-CL : A Declarative Calculation Language Proposal for a Learning Tracks Analysis Process.
The 9th IEEE International Conference on Advanced Learning Technologies (ICALT' 2009), 2009, Riga, Latvia. pp.681--685.
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