@misc{indiciae11c18f69fb50,
  title = {Glutamine synthetase gene evolution in bacteria.},
  author = {G Pesole and C Gissi and C Lanave and C Saccone},
  year = {1995},
  doi = {10.1093/oxfordjournals.molbev.a040197},
  url = {https://pubmed.ncbi.nlm.nih.gov/7700148/},
  note = {Source identifier: 7700148}
}