1. Bellman, R.: Stability Theory of Differential Equations. McGraqw-Hill, New York (1953)
2. Bellman, R.: Introduction to the Mathematical Theory of Controlled Processes, vol 1/2, Academic Press, New York (1967/1971)
3. Bensoussan, A., Lions, J.L.: Contrôle Impulsionnel et Inéquations Quasi-variationnelles. Dunod, Paris (1982)
4. Carter, T.E.: Optimal impulsive space trajectories based on linear equations. J. Optim. Theory Appl. 70(2), 277–297 (1991).
https://doi.org/10.1007/BF00940627
5. Carter, T., Humi, M.: A new approach to impulsive rendezvous near circular orbit. Celest. Mech. Dyn. Astron. 112(4), 385–426 (2012)