@article{oai:barrel.repo.nii.ac.jp:00004345,
 author = {大津, 晶 and 腰塚, 武志},
 journal = {日本都市計画学会学術研究論文集},
 month = {},
 note = {In this paper，we discuss two kinds of flows which are centralized flow and uniform flow in an urban area. Centralized flow is the set of flows whose origin or destination points are on the center of the area. Uniform flow is the set of flows whose origin and destination points are distributed uniformly in the area. Finally, we are able to estimate the ratio of centralized flow to uniform flow which indicates the degree of concentration in the urban area.},
 pages = {133--138},
 title = {都市域の交通流集中に関する数理的分析},
 volume = {32},
 year = {1997}
}