@misc{indiciae9d1e31ed8b50,
  title = {Higher-derivative Lagrangians, nonlocality, problems, and solutions.},
  author = {JZ Simon},
  year = {1990},
  doi = {10.1103/physrevd.41.3720},
  url = {https://pubmed.ncbi.nlm.nih.gov/10012315/},
  note = {Source identifier: 10012315}
}