@misc{indiciae44fe7fd421ce,
  title = {Variable-Aperture Reciprocating Reed Valve},
  author = {Lindner, Jeffrey L. and Myers, W. Neill and Kelley, Anthony R. and Yang, Hong Q.},
  year = {2015},
  url = {https://ntrs.nasa.gov/citations/20150003444},
  note = {Source identifier: 20150003444}
}