1. Alexéev, V., Tikhomirov, V., & Fomine, S. (1982). Commande optimale. Moscou: Éditions MIR.
2. Brekke, K. R., Cellini, R., Siciliani, L., & Straume, O. R. (2017). Differential games in health-care markets: Models of quality competition with fixed prices. In J. Apaloo & B. Viscolani (Eds.), Advances in dynamic and mean field games. Annals of the International Society of dynamic games (Vol. 15, pp. 145–167). Cham: Birkhäuser.
3. Brekke, K. R., Siciliani, L., & Straume, O. R. (2012). Quality competition with profit constraints. Journal of Economic Behavior and Organization, 84, 642–659.
4. Buratto, A., & Grosset, L. (2006). A communication mix for an event planning: A linear quadratic approach. Central European Journal of Operations Research, 14(3), 247–259.
5. Carrillo-Santisteve, P., & Lopalco, P. L. (2012). Measles still spreads in Europe: Who is responsible for the failure to vaccinate? Clinical Microbiology and Infection, 18(Suppl. 5), 50–56.