Groche, Peter and Wießner, Lennart Tekkaya, A. Erman and Homberg, Werner and Alexander, Brosius (eds.) (2015):
High-Performance Permanent Magnets by Cold Forming.
In: 60 Excellent Inventions in Metal Forming, pp. 337-342, Berlin Heidelberg, Springer-Verlag, ISBN 978-3-662-46311-6,
[Book Section]