@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033080,
 author = {Odaka, Toshikazu},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Aug},
 pages = {1--26},
 title = {Asymptotic Behavior of Spheroidal Eigenfrequencies of a Multi-Layered Spherical Earth : Modes of Very High Phase Velocity},
 volume = {55},
 year = {1980}
}