Columbia subject headings:
Harvard subject headings:
Electric apparatus and appliances--Germany--Hildesheim--History--20th century.
Military electronics industry--Germany--Hildesheim--History--20th century.
National socialism.
Robert Bosch GmbH--History--20th century.
Princeton subject headings:
Defense industries--Germany--Hildesheim--History--20th century.
Forced labor--Germany--Hildesheim--History--20th century.
Industrial mobilization--Germany--Hildesheim--History--20th century.
Robert Bosch GmbH.