1. US 9.194.280 (2015); WO 2012/084.092;
2. WO 2008/113.457;
3. US 7.708.553 (2010); US 6.620.761 (2003 Catacel); JP‐Appl. 2008‐178.766 (Mazda); US‐Appl. 2009/0.298.674 (2009); US 6.460.345 (2003 GE); US 6.442.933 and 6.444.177 (2002 Siemens); US 5.750.458 (1998); US 5.826.429 (1998 GE); US 5.990.037 (1999 CRI); Farrauto/Bartholomew p.649;
4. Ertl/Knözinger/Weitkamp Vol. 4 p.1668;