1. SAE Paper No.;C M Atkinson,1999
2. SAE Paper No.;M Brusstar,2005
3. SAE Paper No.;D Carter,2003
4. SAE Paper No.;N N Clark,1998
5. Department of Energy (2012). FY 2012 Progress Report for Advanced Combustion Engine Research and Development. DOE/EE-0872, II-66-II-70.