Columbia subject headings:
Bielfeldt, Sigrun--Travel--Ukraine.
Müller, Ludolf, 1917-2009.
Slavists--Germany--Biography.
Tschižewskij, Dmitrij, 1894-1977.
Harvard subject headings:
Bielfeldt, Sigrun--Travel--Ukraine.
Müller, Ludolf, 1917-2009.
Slavic philology--History.
Slavists--Poland--Biography.
Slavists--Ukraine--Biography.
Tschižewskij, Dmitrij, 1894-1977
Princeton subject headings:
Bielfeldt, Sigrun--Travel--Ukraine.
Müller, Ludolf, 1917-2009.
Slavists--Germany--Biography.
Tschižewskij, Dmitrij, 1894-1977.