@misc{indiciae2c03c4e67012,
  title = {Sonic spark chambers for cosmic-ray experiments},
  author = {Ahlen, S. P. and Cartwright, B. G. and Price, P. B. and Tarle, G.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760044006},
  note = {Source identifier: 19760044006}
}