| Year | 2018 |
| Date | 06-Jul |
| Volume | 221 |
| Issue | 4,590 |
| Page | 93 |
| Category | Internal Combustion |
| Part | 5 |
| Title | Two Pistons and Three Con Rods |
| Author | Wolfgang Tepper |
| Notes | Describes a water-cooled four-stroke opposed-piston engine. Camshaft and ignition trigger device, valve drive, flywheel |