Columbia subject headings:
Thrace--Antiquities--Congresses.
Thracians--Congresses.
Tomaschek, Wilhelm, 1841-1901--Congresses.
Harvard subject headings:
Thrace--Antiquities--Congresses.
Thracians--Congresses.
Tomaschek, Wilhelm, 1841-1901--Congresses.
Princeton subject headings:
Thrace--Antiquities--Congresses.
Thracians--Congresses.
Tomaschek, Wilhelm, 1841-1901--Congresses.