@book{oai:nichibun.repo.nii.ac.jp:00005444,
 author = {山折,  哲雄},
 month = {Aug},
 publisher = {国際日本文化研究センター, International Research Center for Japanese Studies},
 title = {第2章　「遊び」と「遊びごころ」},
 volume = {16},
 year = {1998}
}