@article{oai:ir.ide.go.jp:00051073,
 author = {青木, 栄一},
 journal = {Technological Innovation and the Development of Transportation in Japan},
 month = {},
 pages = {229--243},
 title = {Chap. 8:new developments in transportation (1955-1980) :  railroads},
 year = {1993}
}