@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037865,
 author = {Yokoyama, Matajiro},
 journal = {The journal of the College of Science, Imperial University of Tokyo, Japan = 東京帝國大學紀要. 理科},
 month = {Dec},
 note = {application/pdf},
 pages = {1--39},
 title = {Mesozoic Plants from China},
 volume = {21},
 year = {1906}
}