Columbia subject headings:
Harvard subject headings:
Authors, German--Travel.
Brumme, Christoph D.--Diaries.
Brumme, Christoph D.--Travel--Poland.
Brumme, Christoph D.--Travel--Russia.
Brumme, Christoph D.--Travel--Ukraine.
Cyclists--Travel.
Poland--Description and travel
Russia--Description and travel.
Ukraine--Description and travel.
Princeton subject headings:
Authors, German--Travel.
Brumme, Christoph D.--Diaries.
Brumme, Christoph D.--Travel--Poland.
Brumme, Christoph D.--Travel--Russia.
Brumme, Christoph D.--Travel--Ukraine.
Cyclists--Travel.
Diaries.
Poland--Description and travel.
Russia--Description and travel.
Ukraine--Description and travel.