http://www.eclipse.net/~fitzgera/barron/double6.htm Dizzy Gillespie and The Double Six Of Paris Track listing for their recording with Gillespie, which featured Bud Powell. http://www.singers.com/jazz/vintage/lesdoublesix.html Les Double Six CD review and brief biography of this French vocalese jazz group. http://wwww.allaboutjazz.com/REVIEWS/r1000_153.HTM Review: Les Double Six Dave Hughes review for All about Jazz of cd "Les Double Six" which featured Quincy Jones compositions. http://www.singers.com/arrangers/wardswingle.html Swingle, Ward Background on the founder of The Double Six of Paris and the Swingle Singers.