@book{1973matsuiainugonyumondai1kai,
  title = {第１回アイヌ語入門講座をふりかえって},
  author = {松井 恒幸},
  year = {1973},
  language = {ain},
  url = {https://aterui.ws.hosei.ac.jp/togo/detail.php?id=5026\&domain=ainu}
}