1. Advanced Distributed Learning Website, http://www.adlnet.org/Pages/Default.aspx
2. Anacleto, J.C., Carlos, A.J., de Carvalho, A.F., Dias, A.L.: Bridging the gap among cultures: the challenge faced by teachers on producing content for computer-aided education. In: Proceedings of the 26th Annual ACM international Conference on Design of Communication, SIGDOC 2008, ACM, New York (2008)
3. Attewell, J.: From Research and Development to Mobile Learning: Tools for Education and Training Providers and their Learners. In: Proceedings of mLearn (2005), http://www.mlearn.org.za/CD/papers/Attewell.pdf
4. Brown, E., Cristea, A., Stewart, C., Brailsford, T.: Patterns in Authoring of Adaptive Educational Hypermedia: A Taxonomy of Learning Styles. Educational Technology and Society 8(3), 77–90 (2005)
5. Berlanga, A.J., García, F.J.: Authoring tools for adaptive learning designs in computer-based education. In: Proceedings of the 2005 Latin American Conference on Human-Computer interaction, vol. 24, pp. 190–201. ACM, New York (2005)