Columbia subject headings:
Schnittke, Alfred, 1934-1998. Chamber music.
Schumann, Robert, 1810-1856. Trios,
Harvard subject headings:
Schnittke, Alfred, 1934-1998--Criticism and interpretation.
Schumann, Robert, 1810-1856--Criticism and interpretation.
Princeton subject headings:
Schnittke, Alfred, 1934-1998. Chamber music.
Schnittke, Alfred, 1934-1998. Musique de chambre
Schumann, Robert, 1810-1856. Chamber music.
Schumann, Robert, 1810-1856. Chamber music. Selections