@misc{indiciae07689dca9571,
  title = {The Delta improved second stage - First flight results},
  author = {Grimes, D. W. and Kraft, J. D. and Ganoung, J. K. and Raburn, L. C.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820063531},
  note = {Source identifier: 19820063531}
}