. . "Quartets for flute, violin, viola and violincello" . . "Four quartets for flute & strings" . "Quartette, Vl Va Vc Fl, Nr. 6" . . . "Quartette, Vl Va Vc Fl, Nr. 3" . "Four quartets for flute and strings" . . "Quartette, Vl Va Vc Fl, Nr. 2" . . "Quartette, Vl Va Vc Fl, Nr. 5" . . . . . . . .