Assessing English as a Second Language: From Classroom Data to a Competence-Based Open Learner Model. - Susan Bull; Barbara Wasson; Michael D. Kickmeier-Rust; Matthew D. Johnson 002; Eli Moe; Cecilie Hansen; Gerhilde Meissl-Egghart; Klaus Hammermueller (ICCE, 2012)

Learning, Learning Analytics, Activity Visualisation and Open Learner Model: Confusing? - Susan Bull; Michael D. Kickmeier-Rust; Ravi K. Vatrapu; Matthew D. Johnson 002; Klaus Hammermueller; William Byrne; Luis Hernandez-Munoz; Fabrizio Giorgini; Gerhilde Meissl-Egghart (EC-TEL, 2013)