@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037926,
 author = {Ikeda, Sakujiro},
 journal = {The journal of the College of Science, Imperial University of Tokyo, Japan = 東京帝國大學紀要. 理科},
 month = {Jun},
 note = {application/pdf},
 pages = {1--90},
 title = {Contributions to the Embryology of Amphibia : The Mode of Blastopore Closure and the Position of the Embryonic Body},
 volume = {17},
 year = {1902}
}