1. Agrachev, A.A., Sarychev, A.V.: On abnormals extremals for Lagrange variational problem. J. Math. Syst. Estim. Control 1, 87–118 (1998)
2. Allgower, E.L., Georg, K.: Numerical Continuation Methods, an Introduction. Springer, Berlin (1990)
3. Arnold, V.I.: Mathematical Methods of Classical Mechanics. Springer, New York (1989)
4. Bonnard, B., Caillau, J.-B., Picot, G.: Geometric and numerical techniques in optimal control of the two and three-body problems. Commun. Inf. Syst. 10, 239–278 (2010)
5. Bonnard, B., Caillau, J.-B., Trélat, E.: Geometric optimal control of elliptic Keplerian orbits. Discrete Cont. Dyn. Syst. Ser. B 4, 929–956 (2005)