@article{oai:ir.ide.go.jp:00051072,
 author = {原田, 勝正},
 journal = {Technological Innovation and the Development of Transportation in Japan},
 month = {},
 pages = {222--229},
 title = {Chap. 8 : new developments in transportation (1955-1980)  : policy},
 year = {1993}
}