@misc{indiciae69528884f901,
  title = {Maximal functions associated to smooth curves.},
  author = {E M Stein and S Wainger},
  year = {1976},
  doi = {10.1073/pnas.73.12.4295},
  url = {https://pubmed.ncbi.nlm.nih.gov/16592370/},
  note = {Source identifier: 16592370}
}