@book{1999xcvm11j,
  title = {少数民族言語資料の記録と保存-樺太アイヌ語とニヴフ語-},
  author = {宮岡 伯人},
  year = {1999},
  language = {ain},
  url = {https://ndlsearch.ndl.go.jp/books/R100000002-I000007083020}
}