@article{oai:repository.lib.tottori-u.ac.jp:00003402,
 author = {Okada, Norio and Okada, Norio},
 issue = {1},
 journal = {鳥取大学工学部研究報告, Reports of the Faculty of Engineering, Tottori University},
 month = {Oct},
 pages = {260--274},
 title = {A Cluster Analysis Applied to Determining Water Distribution Districts},
 volume = {11},
 year = {1980}
}