@article{1930kindaichiitokupa,
  title = {アイヌのイトクパの問題},
  author = {金田一 京助},
  year = {1930},
  doi = {10.1537/ase1911.45.129},
  language = {ain},
  url = {https://doi.org/10.1537/ase1911.45.129}
}