@phdthesis{oai:ir.soken.ac.jp:00005122,
 author = {石田, 哲朗 and イシダ, テツロウ and ISHIDA, Tetsuro},
 month = {2015-06-23, 2015-11-29},
 note = {application/pdf, 総研大甲第1757号},
 school = {総合研究大学院大学},
 title = {Study on multi-timescale characteristics of ionospheric trough in subauroral/auroral region},
 year = {}
}