@misc{indiciae566af8eeda19,
  title = {Study of Some Burner Cross-section Changes that Increase Space-heating Rates},
  author = {Boldman, Donald R and Blackshear, Perry L , Jr},
  year = {1957},
  url = {https://ntrs.nasa.gov/citations/19930084985},
  note = {Source identifier: 19930084985}
}