@misc{indiciae38afca1d5894,
  title = {Development and evaluation of a hybrid averaged orbit generator},
  author = {Mcclain, W. D. and Long, A. C. and Early, L. W.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780065863},
  note = {Source identifier: 19780065863}
}