Wolfgang Lerche
Marcel Vilez
Stephen Perrella
P. Feltham
Martin, J. W.
Kurt Kegel
Unknown Author
D. A. Prokoshkin
Abeer Arafat
Geoffrey Parrish
Clarence Arnold Siebert
Tucker, Robert C.
Joachim Piprek
Kenneth Paul Kees
G. V. Karpenko
Uday S. Dixit
Tanya Paskova
Howard E. Boyer
American Society for Metals. Committee on Induction Hardening.