@misc{indiciae3d18c11f6a0a,
  title = {Gravity goniometer. A simple and multipurpose tool.},
  author = {R S Dhir and V A Ribera and M I Jacobson},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5110935/},
  note = {Source identifier: 5110935}
}