@article{1999akikokogirelationofhumanandnaturalenvironmentonainu,
  title = {Relation of Human and Natural Environment on Ainu Place-names in Hokkaido: Case of Place-names about River and Cliff.},
  author = {Akiko KOGI, Makoto Kikuchi, Takahiko Furuya},
  year = {1999},
  url = {https://doi.org/10.5190/tga.51.103}
}