@misc{indiciaee90bfcdccf59,
  title = {Hydrogen-oxygen space shuttle ACPS thruster technology review},
  author = {Gregory, J. W. and Herr, P. N.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730002017},
  note = {Source identifier: 19730002017}
}