@book{2025mikafukazawaextractionofregularitiesandgeographicalpatter,
  title = {Extraction of regularities and geographical patterns from the basic vocabulary of the Ainu language},
  author = {深澤 美香},
  year = {2025},
  language = {ain},
  url = {https://geolinguistics.sakura.ne.jp/Monograph/picag6-ebook.pdf}
}