1. Alvarez M., Llibre J. (1998). Restricted three-body problems and the non-regularization of the eliptic collision restricted isosceles three-body problem. Extracta Mathematicae 13(1): 73–94
2. Alvarez M., Llibre J. (2001). Heteroclinic orbits and Bernoulli shift for the elliptic collision restricted three-body problem. Arch. Rational Mech. Anal. 156(4): 317–357
3. Arenstorf R. (1966). A new method of perturbation theory and its application to the satellite problem of celestial mechanics. J. Reine Angew. Math. 221: 113–145
4. Cors J., Pinyol C., Soler J. (2001). Periodic solutions in the spatial elliptic restricted three-body problem. Physica D 154: 195–206
5. Cors J., Pinyol C., Soler J. (2005). Analytic continuation in the case of non-regular dependency on a small parameter with an application to celestial mechanics. Physica D 219: 1–19