@article{oai:niigata-u.repo.nii.ac.jp:00004084,
 author = {大山, 卓爾 and 熊沢, 喜久雄},
 issue = {5},
 journal = {日本土壌肥料學雜誌, 日本土壌肥料學雜誌},
 month = {Oct},
 pages = {424--425},
 title = {重窒素標識窒素ガス簡易作成装置の試作},
 volume = {49},
 year = {1978}
}