@phdthesis{oai:tsukuba.repo.nii.ac.jp:00021089,
 author = {山田, 秀之},
 month = {},
 note = {2008},
 school = {筑波大学, University of Tsukuba},
 title = {二ホウ化マグネシウム(MgB2)線材の電流特性向上に関する研究},
 year = {2009}
}