@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033742,
 author = {Kanai, Kiyoshi and Yoshizawa, Shizuyo and Suzuki, Tomisaburo},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Jun},
 note = {application/pdf},
 pages = {261--270},
 title = {An Empirical Formula for the Spectrum of Strong Earthquake Motions. II},
 volume = {41},
 year = {1963}
}