@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033026,
 author = {Odaka, Toshikazu},
 issue = {2},
 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 = {277--308},
 title = {Ray-Theoretical Approach to Frequency Equations of Spheroidal Oscillations of a Spherical Earth with Uniform or Non-Uniform Mantle and Care},
 volume = {56},
 year = {1981}
}