uehara-ezo-goshu:
  type: book
  title: "蝦夷語集 元・享・利・貞"
  author:
    - "上原 熊次郎"
  url: "https://www.lib.hokudai.ac.jp/cgi-bin/hoppodb/record.cgi?id=0A023650000000000"
  language: "ain"
