JNR Class EF63 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "JNR Class EF63" in English language version.

refsWebsite

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low place

low place

ide.go.jp

d-arch.ide.go.jp

Harada, Katsumasa (1981). "Technological independence and progress of standardization in the Japanese railways". JETRO. Retrieved 2 January 2009. it was eventually decided to build the track at a steep grade of 66.7/1,000