@misc{indiciae45f380c25097,
  title = {Universal canonical forms for time-continuous dynamical systems.},
  author = {L Brenig and A Goriely},
  year = {1989},
  doi = {10.1103/physreva.40.4119},
  url = {https://pubmed.ncbi.nlm.nih.gov/9902642/},
  note = {Source identifier: 9902642}
}