@phdthesis{oai:tsukuba.repo.nii.ac.jp:00010823,
 author = {奥井, 正俊 and Okui, Masatoshi},
 month = {},
 note = {1989},
 school = {筑波大学, University of Tsukuba},
 title = {A geographical study on the types of automotive traffic region and their distribution in the Kanto district, Japan},
 year = {1989}
}