1. Tech. Transl. F-97 NASA;ES Semenov,1963
2. SAE Paper 861529;H Daneshyar,1986
3. SAE Paper 730086;RE Winsor,1973
4. Woods, W.A. and Ghirlando, R., “Radial flow in an engine cylinder near the end of compression”, I. Mech.E. Conf. Publ. 1975.
5. SAE Paper 770220;PO Witze,1978