1. Regulations (EC) No. 715∕2007 of the European Parliament and the Council, OJL 171, 1 (2007).
2. USA Enviromental Protection Agency Federal Register, 65, 6698 (2000).
3. USA Enviromental Protection Agency Office of Mobile Sources, EPA 400-F-92-007, 1 (1994).
4. Calorimetric hydrocarbon sensor for automotive exhaust applications