| Year | 2018 |
| Date | 11-May |
| Volume | 220 |
| Issue | 4,586 |
| Page | 693 |
| Category | Internal Combustion |
| Part | 3 |
| Title | Two Pistons and Three Con Rods |
| Author | Wolfgang Tepper |
| Notes | Describes a water-cooled four-stroke opposed-piston engine. Pistons and connecting rods, crankshaft |