@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034565, author = {Muto, Katuhiko}, issue = {1}, journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University}, month = {Mar}, note = {application/pdf}, pages = {60--69}, title = {6. The Possibility of Determining the Geoid by means of Levelling}, volume = {16}, year = {1938} }