Third-body perturbation in the case of elliptic orbits for the disturbing body. Domingos, R.C., de Moraes, R.Vilhena, de Almeida Prado, A.F.Bertachini (2008) Mathematical Problems in Engineering
Third-body perturbation using a single averaged model: application in nonsingular variables. Solórzano, Carlos Renato Huaura, De Almeida Prado, Antonio Fernando Bertachini (2007) Mathematical Problems in Engineering
Travaux de Moser sur la stabilité des mouvements périodiques René Thom (1962/1964) Séminaire Bourbaki
Triple Collision in the Planar Isosceles Three Body Problem. Robert L. Devaney (1980) Inventiones mathematicae