@misc{indiciae22e9a2985311,
  title = {Optimum two-impulse transfers for preliminary interplanetary trajectory design},
  author = {Hulkower, N. D. and Lau, C. O. and Bender, D. F.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840062799},
  note = {Source identifier: 19840062799}
}