Morse index and stability of elliptic Lagrangian solutions in the planar three-body problem

@article{Hu2010MorseIA,
  title={Morse index and stability of elliptic Lagrangian solutions in the planar three-body problem},
  author={Xijun Hu and Shanzhong Sun},
  journal={Advances in Mathematics},
  year={2010},
  volume={223},
  pages={98-119}
}
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