@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033829,
 author = {Aki, Keiiti},
 issue = {2},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Aug},
 note = {application/pdf},
 pages = {255--283},
 title = {8. Crustal Structure in Japan from the Phase Velocity of Rayleigh Waves : Part 1. Use of the network of seismological stations operated by the Japan Meteorological Agency},
 volume = {39},
 year = {1961}
}