@misc{indiciae30acdaf55080,
  title = {Spark Plug Defects and Tests},
  author = {Silsbee, F B and Loeb, L B and Sawyer, L G and Fonseca, E L and Dickinson, H C and Agnew, P G},
  year = {1920},
  url = {https://ntrs.nasa.gov/citations/19930091113},
  note = {Source identifier: 19930091113}
}