@misc{indiciaeac21a66eaa97,
  title = {Geometry optimization of periodic systems using internal coordinates.},
  author = {Tomás Bucko and Jürgen Hafner and János G Angyán},
  year = {2005},
  doi = {10.1063/1.1864932},
  url = {https://pubmed.ncbi.nlm.nih.gov/15836398/},
  note = {Source identifier: 15836398}
}