@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033708,
 author = {Sato, Yasuo and Usami, Tatsuo},
 issue = {3},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Sep},
 note = {application/pdf},
 pages = {459--466},
 title = {Phase Angle of Waves Propagating on a Spherical Surface with Special Reference to the Polar Phase Shift and the Initial Phase},
 volume = {41},
 year = {1963}
}