@article{1997kirikaesocialaspectsainulinguisticdecline,
  title = {Social Aspects of the Ainu Linguistic Decline},
  author = {切替 英雄},
  year = {1997},
  journal = {Senri ethnological studies},
  language = {ain},
  url = {https://ci.nii.ac.jp/naid/110000006861}
}