@article{oai:meisei.repo.nii.ac.jp:00000341, author = {篠山, 浩文 and Shinoyama, Hirofumi}, issue = {2}, journal = {教育学部研究紀要}, month = {Mar}, pages = {59--70}, title = {教材として扱いやすい校庭の"ななくさ(七雑草)"}, year = {2012} }