@article{oai:niigata-u.repo.nii.ac.jp:00030733,
 author = {笹原, 治},
 journal = {新潟県植物保護, 新潟県植物保護},
 month = {Jan},
 pages = {13--13},
 title = {美しくない自然},
 volume = {13},
 year = {1993}
}