@misc{indiciaed9d2119b7f1c,
  title = {Unified 3-D structure and projection orientation refinement using quasi-Newton algorithm.},
  author = {Chao Yang and Esmond G Ng and Pawel A Penczek},
  year = {2005},
  doi = {10.1016/j.jsb.2004.08.010},
  url = {https://pubmed.ncbi.nlm.nih.gov/15629657/},
  note = {Source identifier: 15629657}
}