@misc{oai:nipr.repo.nii.ac.jp:00015808,
 month = {Dec},
 note = {The Tenth Symposium on Polar Science/Special session: [IW] Whole atmosphere, Wed. 4 Dec. / 3F Seminor Room D304, National Institute of Polar Research},
 title = {Propagation direction analysis of medium-scale travelling ionospheric disturbances (MSTIDs) observed with 2D GPS-TEC map using M-transform},
 year = {2019}
}