@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037606,
 author = {Yokoyama, Matajiro},
 journal = {The journal of the College of Science, Imperial University, Japan = 帝國大學紀要. 理科},
 month = {},
 note = {application/pdf},
 pages = {239--247},
 title = {On some Fossil Plants from the Coal-bearing Series of Nagato},
 volume = {4},
 year = {1891}
}