1. The new Audi 2.0l T-FSI motor – the first direct injection turbo gasoline engine at Audi;Krebs,2004
2. The new 2.3l direct injection turbo gasoline engine from Mazda;Nishida,2005
3. The new BMW turbocharged six-cylinder inline petrol engine;Welter;MTZ Worldw.,2007
4. Lamborghini Approach to Engine Downsizing – Engine Friction Modeling;Meloni,2013