1. J.-O. Nilsson, Proceedings of the International Conference Duplex Stainless Steels 97, Maastricht, The Netherlands, 1997, KCI Publisher, 1997, p.73.
2. Super duplex stainless steels
3. L. Karlsson, S. Rigdal, F. Lake, Proceedings of the International Conference Duplex America 2000, Houston, USA, KCI Publisher, 2000, p. 257.