F. Bellotti, R. Berta and A. De Gloria, “Designing Effec tive Serious Games: Opportunities and Challenges for Research,” Special Issue: Creative Learning with Serious Games, Journal of Emerging Technologies in Learning, Vol. 5, No. 3, 2010, pp. 22-35.
 F. Bellotti, R. Berta, A. De Gloria and L. Primavera, “Adaptive Experience Engine for Serious Games,” IEEE Transactions on Computational Intelligence and AI in Games, Vol. 1, No. 4, 2009, pp. 264-280. doi:10.1109/TCIAIG.2009.2035923
 M. Athans, “On Optimal Allocation and Guidance Laws for Linear Interception and Rendez Vous Problems,” IEEE Transactions on Aerospace and Electronics Sys tems, Vol. 7, No. 5, 1971, pp. 843-853. doi:10.1109/TAES.1971.310324
 A. A. Melikyan, “Primary Strategies of Simple Pursuit in Differential Games on Two-Sided Plane Figures,” Journal of Applied Mathematics and Mechanics, Vol. 68, No. 4, 2004, pp. 545-554. doi:10.1016/j.jappmathmech.2004.07.007
 V. Y. Glizer and V. Turetsky, “Complete Solution of a Differential Game with Linear Dynamics and Bounded Controls,” Applied Mathematics Research Express, Vol. 2008, No. 1, 2008, 49 p. doi:10.1093/amrx/abm012