@article{oai:nifs-repository.repo.nii.ac.jp:00009407, author = {Wakabayashi, H. and Himura, H. and Isobe, M. and Okamura, S. and CHS, Group}, journal = {Annual Report of National Institute for Fusion Science}, month = {2016-03-14}, title = {Observation of Space Potential Variation on Magnetic Surfaces on CHS}, volume = {Annual Report Apr.2004 - Mar.2005}, year = {} }