@misc{indiciae548e4d706e8f,
  title = {Oscillatory singular integrals and harmonic analysis on nilpotent groups.},
  author = {F Ricci and E M Stein},
  year = {1986},
  doi = {10.1073/pnas.83.1.1},
  url = {https://pubmed.ncbi.nlm.nih.gov/16593640/},
  note = {Source identifier: 16593640}
}