Angela Brunstein, Josef Krems. Helps and Hints for Learning with Web Based Learning Systems: The Role of Instructions. In James C. Lester, Rosa Maria Vicari, Fábio Paraguaçu, editors, Intelligent Tutoring Systems, 7th International Conference, ITS 2004, Maceiò, Alagoas, Brazil, August 30 - September 3, 2004, Proceedings. Volume 3220 of Lecture Notes in Computer Science, pages 794-796, Springer, 2004.
Abstract is missing.