@misc{indiciae2485fa9317ee,
  title = {Helical rotary screw expander power system},
  author = {Mckay, R. A. and Sprankle, R. S.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19750012784},
  note = {Source identifier: 19750012784}
}