His Sechs Divertissements für Flöte solo, c1989 t.p. (Charles Keller) p. 16, etc. (Charles (Karl, Carl) Keller; 1784-1855; introduced himself as a composer under the more cosmopolitan French name of "Charles" Keller around 1815)
His Favorit Bolleros, 1820? t.p. (Carl Keller)
His Polonaise favorite, 181-? t.p. (C. Keller)
Altmann, W. Kurzgefasstes Tonkünstler-Lexikon, 15. Aufl. 1. T. (Keller, Karl)
Riemann Musik Lexikon, 12. Aufl. Suppl. (Keller, Karl)