Photometric changes on Saturn's Titan: Evidence for active cryovolcanism (Geophysical Research Letters, 2009)

(untitled) - Nelson, R; Kamp, L; Lopes, R; Matson, D; Kirk, R; Hapke, B; Wall, S; Boryta, MD; Leader, F; Smythe, W; Mitchell, K; Baines, K; et al.