Kwartet voor violen [2], altviool en cello nr.9, "Variations and Fugue on a Theme of Haydn"

Quartet for violins [2], viola and cello no.9, "Variations and Fugue on a Theme of Haydn"

Quartett für Violinen [2], Bratsche und Cello Nr.9, "Variations and Fugue on a Theme of Haydn"

Quatuor pour violons [2], alto et violoncelle no.9, "Variations and Fugue on a Theme of Haydn"