@phdthesis{oai:ir.soken.ac.jp:00004931,
 author = {坂井, 伸行 and サカイ, ノブユキ and SAKAI, Nobuyuki},
 month = {2014-09-03, 2015-01-07},
 note = {application/pdf, 総研大甲第1656号},
 school = {総合研究大学院大学},
 title = {Spiral Structure and Non-Circular Motions of the Milky Way Galaxy Revealed by VLBI Astrometry},
 year = {}
}