@misc{indiciae01213c18407e,
  title = {Direct-space methods in phase extension and phase determination. III. Phase refinement using Sayre's equation.},
  author = {L S Refaat and M M Woolfson},
  year = {1995},
  doi = {10.1107/s0907444995006469},
  url = {https://pubmed.ncbi.nlm.nih.gov/15299772/},
  note = {Source identifier: 15299772}
}