@article{oai:tokyo-metro-u.repo.nii.ac.jp:00002670,
 author = {マツダ, イワレ and Matsuda, Iware},
 issue = {3},
 journal = {Geographical Reports of Tokyo Metropolitan University},
 month = {Jul},
 pages = {81--89},
 title = {A preliminary study on a division of seasons based upon jet streams},
 year = {1968}
}