1. F. Hoffmann, O. Kessler, Th. Lübben, P. Mayr, presented at 4th Int. Conf. on Quenching and Control of Distortion, Beijing, China, November 22–25, 2003.
2. M. Dijkman, T. Rethmann, C. Ament, G. Goch, presented at 49. Int. Wissensch. Koll., Ilmenau, Germany, 2004. – ISBN 3–822–2824–1.