@misc{oai:obihiro.repo.nii.ac.jp:00004028,
 author = {Yanagawa, Hisashi and 柳川, 久},
 month = {Dec},
 note = {application/pdf},
 title = {北海道帯広市のモモンガ用道路横断構造物（モモンガ用エコブリッジ）},
 year = {2003}
}