@ARTICLE{topputo2013on,
  author = {Topputo, F.},
  title = {{On Optimal Two-Impulse Earth--Moon Transfers in a Four-Bod Model}},
  journal = {Celestial Mechanics and Dynamical Astronomy},
  year = {2013},
  volume = {117},
  pages = {279--313},
  number = {3},
  doi = {10.1007/s10569-013-9513-8}
}