1. Cai, Z., Hu, X., Graesser, A.C.: Authoring conversational intelligent tutoring systems. In: Adaptive Instructional Systems, pp. 593–603 (2019)
2. Fletcher, J.D.: The advanced distributed learning (ADL) vision and getting from here to there. INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA (2005). http://www.dtic.mil/docs/citations/ADA452053
3. Wang, L., Shubeck, K., Shi, G., Zhang, L., Hu, X.: CbITS Authoring Tool in GIFT. In Proceedings of the 8th Annual Generalized Intelligent Framework for Tutoring (GIFT) Users Symposium (GIFTSym8) (p. 69). US Army Combat Capabilities Development Command–Soldier Center (2020)
4. Lecture Notes in Computer Science;L Wang,2020
5. Murray, T.: Authoring intelligent tutoring systems: an analysis of the state of the art (1999). https://telearn.archives-ouvertes.fr/hal-00197339/