- Regulated Two-Stage Turbocharging - KKK's New Charging System for Commercial Diesel Engines GBP 11.00
- A New Idea of the Drive Control System in a Motor-car with the Spark-Ignition Engine GBP 11.00
- Electrical Exhaust Gas Aftertreatment Approach for Diesel Engines GBP 11.00
Subtotal (excluding shipping and tax) GBP 33.00