@misc{indiciae36f4b1af6bb9,
  title = {A multi-layer sparse coding network learns contour coding from natural images.},
  author = {Patrik O Hoyer and Aapo Hyvärinen},
  year = {2002},
  doi = {10.1016/s0042-6989(02)00017-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/12074953/},
  note = {Source identifier: 12074953}
}