@article{oai:nifs-repository.repo.nii.ac.jp:00007315,
 author = {"Morita,  S. and Goto,  M. and Masuzaki,  S. and Ashikawa,  N."},
 journal = {Annual Report of National Institute for Fusion Science},
 month = {2016-03-14},
 title = {H/He Ratio in LHD as a Function of Wall Conditioning during Past 9 Years},
 volume = {Annual Report Apr.2006 - Mar.2007},
 year = {}
}