@ARTICLE{zhang2015low,
  author = {Zhang, C. and Topputo, F. and Bernelli-Zazzera, F. and Zhao, Y.-S.},
  title = {{Low-Thrust Minimum-Fuel Optimization in the Circular Restricted Three-Body Problem}},
  journal = {Journal of Guidance Control and Dynamics},
  year = {2014},
  volume = {38},
  pages = {1501--1510},
  doi = {10.2514/1.G001080}
}