Asteroseismic inferences on red giants in open clusters NGC 6791, NGC 6819, and NGC 6811 using Kepler

S Hekker, S Basu, D Stello, T Kallinger, F Grundahl, S Mathur, RA Garcia, B Mosser, D Huber, TR Bedding, R Szabo, J De Ridder, William Chaplin, Yvonne Elsworth, Steven Hale, J Christensen-Dalsgaard, RL Gilliland, M Still, S McCauliff, EV Quintana