@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033862,
 author = {Matumoto, Tosimatu},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Mar},
 note = {application/pdf},
 pages = {13--27},
 title = {2. On the Spectral Structure of Earthquake Waves : The Relation between Magnitude and Predominant Period},
 volume = {38},
 year = {1960}
}