@misc{indiciae29b316667854,
  title = {Directional forces.},
  author = {M Berman},
  year = {1976},
  doi = {10.1179/bjo.3.3.131},
  url = {https://pubmed.ncbi.nlm.nih.gov/1067863/},
  note = {Source identifier: 1067863}
}