@misc{indiciaea455edeacf7e,
  title = {Small-orifice Tubes for Minimizing Dilution in Exhaust-gas Samples},
  author = {Olson, Walter T},
  year = {1943},
  url = {https://ntrs.nasa.gov/citations/19930093251},
  note = {Source identifier: 19930093251}
}