"Guns in South Africa 1899-1902" Part V and VI* Miller, H. W., Lt. Col. "Railway Artillery: A Report on the Characteristics, Scope of Utility, Etc., of Railway Artillery, Volume I" Washington: Government Print Office, 1921==External links==*"When Artillery First "Took to the Rails"*152mm Finnish railway gun*"Railwaygun Web Museum".
- Vol 2 No 3 June 1972.