@misc{indiciaeb92a14a91b1b,
  title = {A stochastic self-organizing map for proximity data.},
  author = {T Graepel and K Obermayer},
  year = {1999},
  doi = {10.1162/089976699300016854},
  url = {https://pubmed.ncbi.nlm.nih.gov/9950727/},
  note = {Source identifier: 9950727}
}