Rhodes J., The Economics of Coal as a Locomotive Fuel on US Class 1 Railroads – the PPT presentation made by John Rhodes to a meeting of the National Capital Land Transportation Committee of the Institute of Electrical/Electronic Engineers and the American Society of Mechanical Engineers in Washington DC on 9th Sept 2008.
Newman C., “Feasibility Report on South Sumatra Rail Traction Options” (currently password protected for restricted access).
The Serpell Report on Railway Finances (1982): an investigation into the finances of British Railways and its operations and recommendations for improvements in its efficiency.
“The Continuing Motive Power Debate” – an extract from “The Twilight of Steam Locomotives” by Ron Ziel (1970) that discusses the paper by H. F. Brown, Ph,B., Fellow A.I.E.E. titled “ECONOMIC RESULTS OF DIESEL ELECTRIC MOTIVE POWER ON THE RAILWAYS OF THE UNITED STATES OF AMERICA” presented to the Institution of Mechanical Engineers in 1960 (see below).