Columbia subject headings:
Cazalis, Henri, 1840-1909.
Mallarmé, Stéphane, 1842-1898.
Harvard subject headings:
Cazalis, Henri, 1840-1909.
Mallarmé, Stéphane, 1842-1898
Princeton subject headings:
Cazalis, Henri, 1840-1909.
Mallarmé, Stéphane, 1842-1898.