@book{2017isaotsutsuiainugochimeitonihonrettojingakitamichi,
  title = {Ainugo chimei to Nihon rettōjin ga kita michi},
  author = {Isao Tsutsui},
  year = {2017},
  url = {https://openlibrary.org/works/OL32432699W}
}