| Year | 1990 |
| Date | 16-Mar |
| Volume | 164 |
| Issue | 3,869 |
| Page | 341 |
| Category | Railway |
| Part | 20 |
| Title | Making Tracks. The Design, Construction and Maintenance of Ground Level Miniature Railways |
| Author | Dennis Monk |
| Notes | Vehicle suspensions, torsional stiffness of a vehicle, steam locomotives, riding cars, bogie rotational stiffness, conclusion |