@book{2012heinrich5linguisticassimilationryukyuansainu,
  title = {5. The Linguistic Assimilation of Ryukyuans and Ainu},
  author = {Patrick Heinrich},
  year = {2012},
  doi = {10.21832/9781847696588-007},
  language = {ain},
  url = {https://doi.org/10.21832/9781847696588-007}
}