@misc{indiciae31946104dfd4,
  title = {Handwritten digit recognition using two-layer self-organizing maps.},
  author = {J Wu and H Yan and A Chalmers},
  year = {1994},
  doi = {10.1142/s0129065794000347},
  url = {https://pubmed.ncbi.nlm.nih.gov/7711966/},
  note = {Source identifier: 7711966}
}