@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037742,
 author = {TERADA, Torahiko},
 journal = {Journal of the College of Science, Imperial University of Tokyo},
 month = {May},
 note = {application/pdf},
 pages = {1--85},
 title = {On Rapid Periodic Variations of Terrestrial Magnetism},
 volume = {37},
 year = {1917}
}