@article{oai:nifs-repository.repo.nii.ac.jp:00002769,
 author = {"Okai,  T. and Momoshima,  N. and Kakiuchi,  H. and Sakuma,  Y."},
 journal = {Annual Report of National Institute for Fusion Science},
 month = {2016-03-14},
 title = {Study on Environmental Tritium: Development of Monitoring Method and Analysis of Factors Controlling the Variation},
 volume = {Annual Report Apr.1998 - Mar.1999},
 year = {}
}