@book{2000hnarumithejapaneseprotolanguageandtheaynuprotolangu,
  title = {日本祖語とアイヌ祖語 : 共通語根を探る = The Japanese protolanguage and the Aynu protolanguage : a search for common roots},
  author = {鳴海日出志著 = H.Narumi},
  year = {2000},
  language = {ain},
  url = {https://ci.nii.ac.jp/ncid/BA49939162}
}