@book{1992bronisawpisudskitheaborignessicofsakhalin2materialsforthe,
  title = {The aborignes [sic] of Sakhalin (2) ; Materials for the study of the Ainu language and folkore},
  author = {Bronisław Piłsudski and Alfred F. Majewicz},
  year = {1992},
  url = {https://ci.nii.ac.jp/ncid/BA2802398X}
}