@misc{indiciae41ddfe131077,
  title = {Phase combination and cross validation in iterated density-modification calculations.},
  author = {K D Cowtan and P Main},
  year = {1996},
  doi = {10.1107/s090744499500761x},
  url = {https://pubmed.ncbi.nlm.nih.gov/15299724/},
  note = {Source identifier: 15299724}
}