Columbia subject headings:
Beer-Hofmann, Richard, 1866-1945.
Hofmannsthal, Hugo von, 1874-1929.
Harvard subject headings:
Beer-Hofmann, Richard, 1866-1945
Hofmannsthal, Hugo von, 1874-1929.
Princeton subject headings:
Beer-Hofmann, Richard, 1866-1945.
Hofmannsthal, Hugo von, 1874-1929.