@misc{indiciae1e695cfc7109,
  title = {A Commutativity Theorem for Normal Operators.},
  author = {B Fuglede},
  year = {1950},
  doi = {10.1073/pnas.36.1.35},
  url = {https://pubmed.ncbi.nlm.nih.gov/16588944/},
  note = {Source identifier: 16588944}
}