@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037592,
 author = {Hatta, Saburo},
 journal = {The journal of the College of Science, Imperial University, Japan = 帝國大學紀要. 理科},
 month = {},
 note = {application/pdf},
 pages = {129--147},
 title = {On the Formation of the Germinal Layers in Petromyzon},
 volume = {5},
 year = {1893}
}