| Year | 2007 |
| Date | 02-Mar |
| Volume | 198 |
| Issue | 4,294 |
| Page | 288 |
| Category | Locomotive |
| Part | |
| Title | Valve Gear and Valve Events for the 5 inch gauge schools class 4-4-0 |
| Author | Simon Bowditch |
| Notes | Describes how modern computer technology can help. Schools, difficult inside, steam diagram, event comparison |