Multiple-unit train control: Difference between revisions

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*[https://web.archive.org/web/20110516214858/http://www.theelevatormuseum.org/e/e-1.htm Frank Sprague]
*[http://yardlimit.railfan.net/guide/locopaper.html The Evolution of the Diesel Locomotive in the United States]
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[[Category:Electric rail transport]]