@misc{indiciaecdcffd7afe53,
  title = {Combinatorial invariants and covariants as tools for conical intersections.},
  author = {Itai Ryb and Roi Baer},
  year = {2004},
  doi = {10.1063/1.1808695},
  url = {https://pubmed.ncbi.nlm.nih.gov/15549915/},
  note = {Source identifier: 15549915}
}