@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034176, author = {金井, 淸}, 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 = {49--60}, title = {On the Group Velocity of Dispersive Surface Waves}, volume = {29}, year = {1951} }