Columbia subject headings:
Harvard subject headings:
Magnesium--Electrometallurgy--History.
Metal trade--Germany--Bitterfeld-Wolfen--History.
Nonferrous metals--Germany--Bitterfeld-Wolfen--Metallurgy--History.
Princeton subject headings:
Light metal alloys.
Magnesium alloys.
Magnesium.
Materials science--Germany--History--20th century--Congresses.
Nonferrous alloys.
Nonferrous metal industries--Germany--Bitterfeld--History.
Nonferrous metal industries--Germany--History.