@article{2021osakafutatsunomonoainuminzokurekishi,
  title = {二つの「モノ」からたどるアイヌ民族の歴史},
  author = {大坂拓},
  year = {2021},
  language = {ain},
  url = {https://www.hkk.or.jp/kouhou/file/no696\_ainurace.pdf}
}