@ARTICLE{mingotti2012efficient,
  author = {Mingotti, G. and Topputo, F. and Bernelli-Zazzera, F.},
  title = {{Efficient Invariant-Manifold, Low-Thrust Planar Trajectories to the Moon}},
  journal = {Communication in Nonlinear Science and Numerical Simulation},
  year = {2012},
  volume = {17},
  pages = {817--831},
  number = {2},
  doi = {10.1016/j.cnsns.2011.06.033}
}