@misc{indiciae985dc7caf06c,
  title = {II. Theoretical considerations and methods.},
  author = {O Hjalmarson and T Olsson and M Riha},
  year = {1974},
  doi = {10.1111/j.1651-2227.1974.tb07576.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4533217/},
  note = {Source identifier: 4533217}
}