Columbia subject headings:
Lachenmann, Helmut--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Trios (Clarinet, percussion, viola)--Scores.
Harvard subject headings:
Lachenmann, Helmut--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Trios (Clarinet, percussion, viola)--Scores.
Princeton subject headings:
Scores.
Trios (Clarinet, percussion, viola)--Scores.