Erica Melis, Arndt Faulhaber, Anja Eichelmann, Susanne Narciss. Interoperable Competencies Characterizing Learning Objects in Mathematics. In Beverly Park Woolf, Esma Aïmeur, Roger Nkambou, Susanne P. Lajoie, editors, Intelligent Tutoring Systems, 9th International Conference, ITS 2008, Montreal, Canada, June 23-27, 2008, Proceedings. Volume 5091 of Lecture Notes in Computer Science, pages 416-425, Springer, 2008. [doi]
Abstract is missing.