@book{2021sugawaraainugokeichimeisoran,
  title = {アイヌ語系地名総覧 : 青森から沖縄まで},
  author = {菅原 進},
  year = {2021},
  language = {ain},
  url = {https://ndlsearch.ndl.go.jp/books/R100000002-I031529001}
}