@book{1996kirstenrefsingearlyeuropeanwritingsontheainulanguage,
  title = {Early European Writings on the Ainu Language},
  author = {Kirsten Refsing, Mikhail Mikhailovich Dobrotvorskiĭ, John C. Batchelor, Basil Hall Chamberlain, Bronisław Piłsudski, Johannes von Rozwadowski},
  year = {1996},
  url = {https://ci.nii.ac.jp/ncid/BA28625246}
}