@article{oai:tohoku-gakuin.repo.nii.ac.jp:00000623,
 author = {熊谷, 正朗},
 issue = {12},
 journal = {プラントエンジニア},
 month = {Dec},
 pages = {56--57},
 title = {公園の遊具と非線形},
 volume = {47},
 year = {2015},
 yomi = {クマガイ, マサアキ}
}