References:

• A. Chenciner (2007), Three body problem. Scholarpedia, 2(10):2111.


• J. D. Crawford, Introduction to bifurcation theory. Rev. Modern Phys. 63 (1991), no. 4, 991-1037.


• D. G. Saari, A visit to the Newtonian N-body problem via elementary complex variables. Amer. Math. Monthly 97 (1990), no. 2, 105-119.