| Year | 2009 |
| Month | April |
| Volume | 30 |
| Issue | 10 |
| Page | 346 |
| Author | Walker |
| Subject | Locomotive |
| Key Word | Basic Assumptions Steam Injectors Axle Crosshead Pumps Donkey Pumps Feedwater Heating Malden and District SME |
| Article Title | Steam Injectors and boiler feed pump efficiencies |