@article{2011masashijapanasmultilingualsocietyaynu,
  title = {Japan as a multilingual society: Aynu itak (the Ainu language) (7) Ainu language classes seen from the research of Ainu language},
  author = {雅史 田村},
  year = {2011},
  journal = {ことばと社会},
  language = {ain},
  url = {http://ci.nii.ac.jp/naid/40019041343/en/}
}