@book{hasegawahokubukamikawachihochimeiainugo,
  title = {北部上川地方の主なる地名：そのほとんどがアイヌ語に由来する(地名解)},
  author = {長谷川功編},
  language = {ain},
  url = {https://www.lib.hokudai.ac.jp/cgi-bin/hoppodb/record.cgi?id=0F007810080000000}
}