@article{asubriemannianmodelofthevisualcortex,
  title = {A sub-Riemannian model of the visual cortex with frequency and phase},
  author = {E. Baspinar and A. Sarti and G. Citti},
  year = {2019},
  eprint = {1910.04992},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1910.04992v1},
}