1. ADL–Advanced Distributed Learning (2008). “ADL Guidelines for Creating Reusable Content with SCORM 2004”, July 2008, available http://www.adlnet.gov/wp-content/uploads/2011/07/ADL_Guidelines_Creating_Reusable_Content.pdf. Last accessed Feb 05, 2015.
2. Alsubaie, M (2009). “Reusable Objects: Learning Object Creation Lifecycle”, Proceedings of the Second International Conference on Development of eSystems Engineering, DeSE’09, pp. 321-325. Available http://dx.doi.org/10.1109/DeSE.2009.63. Last accessed Jan 20, 2016.
3. Cech, M., Schlegel, M., Balda, P. and Severa, O. (2013). A New Extensive Source for Web-based Control Education. In S. Dormido (ed), Proceedings of the 10th IFAC Symposium on Advances on Control Education, pp. 1-6, IFAC Papers onLine. Available http://www.ifac-papersonline.net/Detailed/61055.html.
4. Guinaldo, M. de la Torre, L., Heradio, R. and Dormido, S. (2013). In S. Dormido (ed), Proceedings of the 10th IFAC Symposium on Advances on Control Education, pp. 1-6, IFAC Papers onLine. Available http://www.ifac-papersonline.net/Detailed/61079.html.
5. IEEE – Institute of Electrical and Electronic Engineers (2002). Standard for Learning Object Metadata, 1484.12.1TM, 2002. Available http://dx.doi.org/10.1109/IEEESTD.2002.94128. Last accessed February 05, 2015.