@misc{indiciaea54379d013b7,
  title = {A universal angle indicator.},
  author = {M M Ali},
  year = {1988},
  doi = {10.1016/0958-3947(88)90040-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/3251527/},
  note = {Source identifier: 3251527}
}