1. K. Boddenberg, On the manufacture of impellers for turbocompressors, in: Proceedings of the 15th Turbomachinery Symposium, Texas University, Texas, November 1996, Symp. Proc. 5.
2. E. Lugscheider, M. Boretius, H. Krappitz, W. Grellner, in: Proceedings of the Babs Fifth International Conference on High Technology Joining, Brighton, November 1987, Conf. Proc. 10.
3. Sulzer Escher Wyss, Technical Information 1/3, 1992.
4. R. Peereboom, Vacuum Brazing of Turbocompressor Impellers, Turbomachinery Maintenance Congress, Hampshire, UK, 1993, Congr. Proc. 10.