@misc{indiciaeaf3a824bea6b,
  title = {Three-dimensional structure of beta-galactosidase from E. coli.},
  author = {R H Jacobson and X J Zhang and R F DuBose and B W Matthews},
  year = {1994},
  doi = {10.1038/369761a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/8008071/},
  note = {Source identifier: 8008071}
}