Columbia subject headings:
Bieberbach, Ludwig, 1886-1982--Congresses.
Geometric function theory--Congresses.
Harvard subject headings:
Bieberach, Ludwig, 1886---Congresses.
Bieberbach conjecture--Congresses.
Bieberbach, Ludwig, 1886---Congresses.
Bieberbach, Ludwig, 1886-1982--Congresses.
Geometric function theory--Congresses.
Princeton subject headings:
Bieberach, Ludwig, 1886---Congresses.
Geometric function theory--Congresses.