1. B. Engl, E.-J. Drewes, From 450 Mpa dual phase to 1100 Mpa complex phase steels: developement of a new generation of automotive sheet steels, ISATA 97, Florence, 1997
2. B. Engl, L. Keßler, F.-J. Lenze, T.W. Schaumann, Recent experience with the application of TRIP and other advanced multiphase steels, IBEC 98, Vol. 2—Body Materials, 141–151, 1998.
3. Steel Iron Data Sheet DP Steel, H300X, booklet, Thyssen Krupp Stahl AG, 1999.
4. Forming properties of high-strength and ultrahigh-strength multi-phase steels, booklet, Thyssen Krupp Stahl AG, 1999.