PDF  files:

Herbert WAGNER-1   His Work and Life

Herbert WAGNER-2    Dokuments

Herbert WAGNER-3    Patents, References, Links

Herbert Wagner Dissertation 1925

Short Biography (in German), 2004,
by Prof.Dr.-Ing. Klaus Knothe:     Herbert Wagner

NACA Tech Note 469 by Paul Kuhn:
NACA-tn-469 (Kuhn)

Lecture presented at the meeting of the Am. Soc. Mech. Engineers May 1930:  Sheet-Metal Airplane Construction