Landau D., “Two Point Four Pounds per Ton – A Ramble through the History of Railway Mechanics“, 2003.
Landau D., “Boiler Statistics – British Railways Maintenance Costs 1953-57“, published in SLS Journal Sept Oct 2004.
Landau D., “From Shovels to CTs – Measuring the Energy of Trains“, published by the Railway Performance Society (date unknown).