@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037566, author = {Sudo, Onosaburo}, issue = {4}, journal = {The journal of the College of Science, Imperial University, Japan = 帝國大學紀要. 理科}, month = {}, note = {application/pdf}, pages = {283--284}, title = {Formulae for sn 9u}, volume = {7}, year = {1895} }