@misc{indiciae6341b5a309bb,
  title = {A Two-Variable Asymptotic Solution for Three - Dimensional, Solar-Powered, Low-Thrust Trajectories in the Vicinity of the Ecliptic Plane},
  author = {Wesseling, P.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670010587},
  note = {Source identifier: 19670010587}
}