@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033684,
 author = {SATO, Yasuo},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {May},
 note = {application/pdf},
 pages = {1--10},
 title = {1. Soft Core Spectrum Splitting of the Torsional Oscillation of an Elastic Sphere and Related Problems},
 volume = {42},
 year = {1964}
}