Columbia subject headings:
Harvard subject headings:
Lignite mines and mining--Germany--Colditz--History.
Lignite mines and mining--Germany--Grimma--History.
Lignite mines and mining--Germany--Mulde River Region--History.
Lignite mines and mining--Germany--Mulde River Region--Registers.
Lignite mines and mining--Germany--Wurzen--History.
Princeton subject headings:
Lignite mines and mining--Germany--Colditz--History.
Lignite mines and mining--Germany--Grimma--History.
Lignite mines and mining--Germany--Mulde River Region--History.
Lignite mines and mining--Germany--Wurzen--History.