@misc{indiciaec6adb427a366,
  title = {Self-aligning, low-pressure sealing poppet valve},
  author = {Gonzalez, R. and Bratfisch, W. A.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720000537},
  note = {Source identifier: 19720000537}
}