@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037587, author = {Ishikawa, Chiyomatsu}, journal = {The journal of the College of Science, Imperial University, Japan = 帝國大學紀要. 理科}, month = {}, note = {application/pdf}, pages = {1--34}, title = {Studies of Reproductive Elements. 1. Spermatogenesis, Ovogenesis, and Fertilization in Diaptomus sp}, volume = {5}, year = {1893} }