@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033852, author = {Santo, Tetsuo A}, issue = {2}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Jul}, note = {application/pdf}, pages = {219--240}, title = {13. Observation of Surface Waves by Columbia-type Seismograph Installed at Tsukuba Station, Japan (Part 1) : Rayleigh Wave Dispersions across the Oceanic Basin}, volume = {38}, year = {1960} }