@article{2019tomomisatothestudyofolddocumentsofhokkaidoandkurila,
  title = {The study of old documents of Hokkaido and Kuril Ainu : promise and challenges},
  author = {佐藤 知己 and アンナ・ブガエワ},
  year = {2019},
  journal = {Hokkaido University Collection of Scholarly and Academic Papers (Hokkaido University)},
  doi = {10.14943/88223},
  language = {ain},
  url = {https://doi.org/10.14943/88223}
}